646844

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{241}}^1$

素因数の和:317

約数の個数: 24

約数和(自身を含む): 1260336

約数和(自身を除く): 613492

約数列:

[1, 2, 4, 11, 22, 44, 61, 122, 241, 244, 482, 671, 964, 1342, 2651, 2684, 5302, 10604, 14701, 29402, 58804, 161711, 323422, 646844]

約数ペア:

[(1, 646844), (2, 323422), (4, 161711), (11, 58804), (22, 29402), (44, 14701), (61, 10604), (122, 5302), (241, 2684), (244, 2651), (482, 1342), (671, 964)]