21172584

素因数分解:

$2^3\times 3^1\times {\mathrm{37}}^1\times {\mathrm{113}}^1\times {\mathrm{211}}^1$

素因数の和:370

約数の個数: 64

約数和(自身を含む): 55103040

約数和(自身を除く): 33930456

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 37, 74, 111, 113, 148, 211, 222, 226, 296, 339, 422, 444, 452, 633, 678, 844, 888, 904, 1266, 1356, 1688, 2532, 2712, 4181, 5064, 7807, 8362, 12543, 15614, 16724, 23421, 23843, 25086, 31228, 33448, 46842, 47686, 50172, 62456, 71529, 93684, 95372, 100344, 143058, 187368, 190744, 286116, 572232, 882191, 1764382, 2646573, 3528764, 5293146, 7057528, 10586292, 21172584]

約数ペア:

[(1, 21172584), (2, 10586292), (3, 7057528), (4, 5293146), (6, 3528764), (8, 2646573), (12, 1764382), (24, 882191), (37, 572232), (74, 286116), (111, 190744), (113, 187368), (148, 143058), (211, 100344), (222, 95372), (226, 93684), (296, 71529), (339, 62456), (422, 50172), (444, 47686), (452, 46842), (633, 33448), (678, 31228), (844, 25086), (888, 23843), (904, 23421), (1266, 16724), (1356, 15614), (1688, 12543), (2532, 8362), (2712, 7807), (4181, 5064)]