21117442

素因数分解:

$2^1\times {\mathrm{109}}^1\times {\mathrm{157}}^1\times {\mathrm{617}}^1$

素因数の和:885

約数の個数: 16

約数和(自身を含む): 32222520

約数和(自身を除く): 11105078

約数列:

[1, 2, 109, 157, 218, 314, 617, 1234, 17113, 34226, 67253, 96869, 134506, 193738, 10558721, 21117442]

約数ペア:

[(1, 21117442), (2, 10558721), (109, 193738), (157, 134506), (218, 96869), (314, 67253), (617, 34226), (1234, 17113)]