21662760

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{41}}^1$

素因数の和:116

約数の個数: 256

約数和(自身を含む): 82736640

約数和(自身を除く): 61073880

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 17, 20, 21, 24, 28, 30, 34, 35, 37, 40, 41, 42, 51, 56, 60, 68, 70, 74, 82, 84, 85, 102, 105, 111, 119, 120, 123, 136, 140, 148, 164, 168, 170, 185, 204, 205, 210, 222, 238, 246, 255, 259, 280, 287, 296, 328, 340, 357, 370, 408, 410, 420, 444, 476, 492, 510, 518, 555, 574, 595, 615, 629, 680, 697, 714, 740, 777, 820, 840, 861, 888, 952, 984, 1020, 1036, 1110, 1148, 1190, 1230, 1258, 1295, 1394, 1428, 1435, 1480, 1517, 1554, 1640, 1722, 1785, 1887, 2040, 2072, 2091, 2220, 2296, 2380, 2460, 2516, 2590, 2788, 2856, 2870, 3034, 3108, 3145, 3444, 3485, 3570, 3774, 3885, 4182, 4305, 4403, 4440, 4551, 4760, 4879, 4920, 5032, 5180, 5576, 5740, 6068, 6216, 6290, 6888, 6970, 7140, 7548, 7585, 7770, 8364, 8610, 8806, 9102, 9435, 9758, 10360, 10455, 10619, 11480, 12136, 12580, 13209, 13940, 14280, 14637, 15096, 15170, 15540, 16728, 17220, 17612, 18204, 18870, 19516, 20910, 21238, 22015, 22755, 24395, 25160, 25789, 26418, 27880, 29274, 30340, 31080, 31857, 34440, 35224, 36408, 37740, 39032, 41820, 42476, 44030, 45510, 48790, 51578, 52836, 53095, 58548, 60680, 63714, 66045, 73185, 75480, 77367, 83640, 84952, 88060, 91020, 97580, 103156, 105672, 106190, 117096, 127428, 128945, 132090, 146370, 154734, 159285, 176120, 180523, 182040, 195160, 206312, 212380, 254856, 257890, 264180, 292740, 309468, 318570, 361046, 386835, 424760, 515780, 528360, 541569, 585480, 618936, 637140, 722092, 773670, 902615, 1031560, 1083138, 1274280, 1444184, 1547340, 1805230, 2166276, 2707845, 3094680, 3610460, 4332552, 5415690, 7220920, 10831380, 21662760]

約数ペア:

[(1, 21662760), (2, 10831380), (3, 7220920), (4, 5415690), (5, 4332552), (6, 3610460), (7, 3094680), (8, 2707845), (10, 2166276), (12, 1805230), (14, 1547340), (15, 1444184), (17, 1274280), (20, 1083138), (21, 1031560), (24, 902615), (28, 773670), (30, 722092), (34, 637140), (35, 618936), (37, 585480), (40, 541569), (41, 528360), (42, 515780), (51, 424760), (56, 386835), (60, 361046), (68, 318570), (70, 309468), (74, 292740), (82, 264180), (84, 257890), (85, 254856), (102, 212380), (105, 206312), (111, 195160), (119, 182040), (120, 180523), (123, 176120), (136, 159285), (140, 154734), (148, 146370), (164, 132090), (168, 128945), (170, 127428), (185, 117096), (204, 106190), (205, 105672), (210, 103156), (222, 97580), (238, 91020), (246, 88060), (255, 84952), (259, 83640), (280, 77367), (287, 75480), (296, 73185), (328, 66045), (340, 63714), (357, 60680), (370, 58548), (408, 53095), (410, 52836), (420, 51578), (444, 48790), (476, 45510), (492, 44030), (510, 42476), (518, 41820), (555, 39032), (574, 37740), (595, 36408), (615, 35224), (629, 34440), (680, 31857), (697, 31080), (714, 30340), (740, 29274), (777, 27880), (820, 26418), (840, 25789), (861, 25160), (888, 24395), (952, 22755), (984, 22015), (1020, 21238), (1036, 20910), (1110, 19516), (1148, 18870), (1190, 18204), (1230, 17612), (1258, 17220), (1295, 16728), (1394, 15540), (1428, 15170), (1435, 15096), (1480, 14637), (1517, 14280), (1554, 13940), (1640, 13209), (1722, 12580), (1785, 12136), (1887, 11480), (2040, 10619), (2072, 10455), (2091, 10360), (2220, 9758), (2296, 9435), (2380, 9102), (2460, 8806), (2516, 8610), (2590, 8364), (2788, 7770), (2856, 7585), (2870, 7548), (3034, 7140), (3108, 6970), (3145, 6888), (3444, 6290), (3485, 6216), (3570, 6068), (3774, 5740), (3885, 5576), (4182, 5180), (4305, 5032), (4403, 4920), (4440, 4879), (4551, 4760)]