21211680

素因数分解:

$2^5\times 3^1\times 5^1\times 7^1\times {\mathrm{59}}^1\times {\mathrm{107}}^1$

素因数の和:191

約数の個数: 192

約数和(自身を含む): 78382080

約数和(自身を除く): 57170400

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 32, 35, 40, 42, 48, 56, 59, 60, 70, 80, 84, 96, 105, 107, 112, 118, 120, 140, 160, 168, 177, 210, 214, 224, 236, 240, 280, 295, 321, 336, 354, 413, 420, 428, 472, 480, 535, 560, 590, 642, 672, 708, 749, 826, 840, 856, 885, 944, 1070, 1120, 1180, 1239, 1284, 1416, 1498, 1605, 1652, 1680, 1712, 1770, 1888, 2065, 2140, 2247, 2360, 2478, 2568, 2832, 2996, 3210, 3304, 3360, 3424, 3540, 3745, 4130, 4280, 4494, 4720, 4956, 5136, 5664, 5992, 6195, 6313, 6420, 6608, 7080, 7490, 8260, 8560, 8988, 9440, 9912, 10272, 11235, 11984, 12390, 12626, 12840, 13216, 14160, 14980, 16520, 17120, 17976, 18939, 19824, 22470, 23968, 24780, 25252, 25680, 28320, 29960, 31565, 33040, 35952, 37878, 39648, 44191, 44940, 49560, 50504, 51360, 59920, 63130, 66080, 71904, 75756, 88382, 89880, 94695, 99120, 101008, 119840, 126260, 132573, 151512, 176764, 179760, 189390, 198240, 202016, 220955, 252520, 265146, 303024, 353528, 359520, 378780, 441910, 505040, 530292, 606048, 662865, 707056, 757560, 883820, 1010080, 1060584, 1325730, 1414112, 1515120, 1767640, 2121168, 2651460, 3030240, 3535280, 4242336, 5302920, 7070560, 10605840, 21211680]

約数ペア:

[(1, 21211680), (2, 10605840), (3, 7070560), (4, 5302920), (5, 4242336), (6, 3535280), (7, 3030240), (8, 2651460), (10, 2121168), (12, 1767640), (14, 1515120), (15, 1414112), (16, 1325730), (20, 1060584), (21, 1010080), (24, 883820), (28, 757560), (30, 707056), (32, 662865), (35, 606048), (40, 530292), (42, 505040), (48, 441910), (56, 378780), (59, 359520), (60, 353528), (70, 303024), (80, 265146), (84, 252520), (96, 220955), (105, 202016), (107, 198240), (112, 189390), (118, 179760), (120, 176764), (140, 151512), (160, 132573), (168, 126260), (177, 119840), (210, 101008), (214, 99120), (224, 94695), (236, 89880), (240, 88382), (280, 75756), (295, 71904), (321, 66080), (336, 63130), (354, 59920), (413, 51360), (420, 50504), (428, 49560), (472, 44940), (480, 44191), (535, 39648), (560, 37878), (590, 35952), (642, 33040), (672, 31565), (708, 29960), (749, 28320), (826, 25680), (840, 25252), (856, 24780), (885, 23968), (944, 22470), (1070, 19824), (1120, 18939), (1180, 17976), (1239, 17120), (1284, 16520), (1416, 14980), (1498, 14160), (1605, 13216), (1652, 12840), (1680, 12626), (1712, 12390), (1770, 11984), (1888, 11235), (2065, 10272), (2140, 9912), (2247, 9440), (2360, 8988), (2478, 8560), (2568, 8260), (2832, 7490), (2996, 7080), (3210, 6608), (3304, 6420), (3360, 6313), (3424, 6195), (3540, 5992), (3745, 5664), (4130, 5136), (4280, 4956), (4494, 4720)]