21493664

素因数分解:

$2^5\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{461}}^1$

素因数の和:549

約数の個数: 48

約数和(自身を含む): 44706816

約数和(自身を除く): 23213152

約数列:

[1, 2, 4, 8, 16, 31, 32, 47, 62, 94, 124, 188, 248, 376, 461, 496, 752, 922, 992, 1457, 1504, 1844, 2914, 3688, 5828, 7376, 11656, 14291, 14752, 21667, 23312, 28582, 43334, 46624, 57164, 86668, 114328, 173336, 228656, 346672, 457312, 671677, 693344, 1343354, 2686708, 5373416, 10746832, 21493664]

約数ペア:

[(1, 21493664), (2, 10746832), (4, 5373416), (8, 2686708), (16, 1343354), (31, 693344), (32, 671677), (47, 457312), (62, 346672), (94, 228656), (124, 173336), (188, 114328), (248, 86668), (376, 57164), (461, 46624), (496, 43334), (752, 28582), (922, 23312), (992, 21667), (1457, 14752), (1504, 14291), (1844, 11656), (2914, 7376), (3688, 5828)]