17995736

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{229}}^1$

素因数の和:312

約数の個数: 64

約数和(自身を含む): 39744000

約数和(自身を除く): 21748264

約数列:

[1, 2, 4, 8, 11, 19, 22, 38, 44, 47, 76, 88, 94, 152, 188, 209, 229, 376, 418, 458, 517, 836, 893, 916, 1034, 1672, 1786, 1832, 2068, 2519, 3572, 4136, 4351, 5038, 7144, 8702, 9823, 10076, 10763, 17404, 19646, 20152, 21526, 34808, 39292, 43052, 47861, 78584, 86104, 95722, 118393, 191444, 204497, 236786, 382888, 408994, 473572, 817988, 947144, 1635976, 2249467, 4498934, 8997868, 17995736]

約数ペア:

[(1, 17995736), (2, 8997868), (4, 4498934), (8, 2249467), (11, 1635976), (19, 947144), (22, 817988), (38, 473572), (44, 408994), (47, 382888), (76, 236786), (88, 204497), (94, 191444), (152, 118393), (188, 95722), (209, 86104), (229, 78584), (376, 47861), (418, 43052), (458, 39292), (517, 34808), (836, 21526), (893, 20152), (916, 19646), (1034, 17404), (1672, 10763), (1786, 10076), (1832, 9823), (2068, 8702), (2519, 7144), (3572, 5038), (4136, 4351)]