19937911

素因数分解:

$7^1\times {\mathrm{53}}^1\times {\mathrm{61}}^1\times {\mathrm{881}}^1$

素因数の和:1002

約数の個数: 16

約数和(自身を含む): 23623488

約数和(自身を除く): 3685577

約数列:

[1, 7, 53, 61, 371, 427, 881, 3233, 6167, 22631, 46693, 53741, 326851, 376187, 2848273, 19937911]

約数ペア:

[(1, 19937911), (7, 2848273), (53, 376187), (61, 326851), (371, 53741), (427, 46693), (881, 22631), (3233, 6167)]