31379854

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{401}}^1\times {\mathrm{3557}}^1$

素因数の和:3971

約数の個数: 16

約数和(自身を含む): 51491376

約数和(自身を除く): 20111522

約数列:

[1, 2, 11, 22, 401, 802, 3557, 4411, 7114, 8822, 39127, 78254, 1426357, 2852714, 15689927, 31379854]

約数ペア:

[(1, 31379854), (2, 15689927), (11, 2852714), (22, 1426357), (401, 78254), (802, 39127), (3557, 8822), (4411, 7114)]