21564296

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{12197}}^1$

素因数の和:12233

約数の個数: 32

約数和(自身を含む): 46108440

約数和(自身を除く): 24544144

約数列:

[1, 2, 4, 8, 13, 17, 26, 34, 52, 68, 104, 136, 221, 442, 884, 1768, 12197, 24394, 48788, 97576, 158561, 207349, 317122, 414698, 634244, 829396, 1268488, 1658792, 2695537, 5391074, 10782148, 21564296]

約数ペア:

[(1, 21564296), (2, 10782148), (4, 5391074), (8, 2695537), (13, 1658792), (17, 1268488), (26, 829396), (34, 634244), (52, 414698), (68, 317122), (104, 207349), (136, 158561), (221, 97576), (442, 48788), (884, 24394), (1768, 12197)]