21494040

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{47}}^1\times {\mathrm{103}}^1$

素因数の和:201

約数の個数: 128

約数和(自身を含む): 68290560

約数和(自身を除く): 46796520

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 37, 40, 47, 60, 74, 94, 103, 111, 120, 141, 148, 185, 188, 206, 222, 235, 282, 296, 309, 370, 376, 412, 444, 470, 515, 555, 564, 618, 705, 740, 824, 888, 940, 1030, 1110, 1128, 1236, 1410, 1480, 1545, 1739, 1880, 2060, 2220, 2472, 2820, 3090, 3478, 3811, 4120, 4440, 4841, 5217, 5640, 6180, 6956, 7622, 8695, 9682, 10434, 11433, 12360, 13912, 14523, 15244, 17390, 19055, 19364, 20868, 22866, 24205, 26085, 29046, 30488, 34780, 38110, 38728, 41736, 45732, 48410, 52170, 57165, 58092, 69560, 72615, 76220, 91464, 96820, 104340, 114330, 116184, 145230, 152440, 179117, 193640, 208680, 228660, 290460, 358234, 457320, 537351, 580920, 716468, 895585, 1074702, 1432936, 1791170, 2149404, 2686755, 3582340, 4298808, 5373510, 7164680, 10747020, 21494040]

約数ペア:

[(1, 21494040), (2, 10747020), (3, 7164680), (4, 5373510), (5, 4298808), (6, 3582340), (8, 2686755), (10, 2149404), (12, 1791170), (15, 1432936), (20, 1074702), (24, 895585), (30, 716468), (37, 580920), (40, 537351), (47, 457320), (60, 358234), (74, 290460), (94, 228660), (103, 208680), (111, 193640), (120, 179117), (141, 152440), (148, 145230), (185, 116184), (188, 114330), (206, 104340), (222, 96820), (235, 91464), (282, 76220), (296, 72615), (309, 69560), (370, 58092), (376, 57165), (412, 52170), (444, 48410), (470, 45732), (515, 41736), (555, 38728), (564, 38110), (618, 34780), (705, 30488), (740, 29046), (824, 26085), (888, 24205), (940, 22866), (1030, 20868), (1110, 19364), (1128, 19055), (1236, 17390), (1410, 15244), (1480, 14523), (1545, 13912), (1739, 12360), (1880, 11433), (2060, 10434), (2220, 9682), (2472, 8695), (2820, 7622), (3090, 6956), (3478, 6180), (3811, 5640), (4120, 5217), (4440, 4841)]