18690354

素因数分解:

$2^1\times 3^2\times {\mathrm{521}}^1\times {\mathrm{1993}}^1$

素因数の和:2522

約数の個数: 24

約数和(自身を含む): 40593852

約数和(自身を除く): 21903498

約数列:

[1, 2, 3, 6, 9, 18, 521, 1042, 1563, 1993, 3126, 3986, 4689, 5979, 9378, 11958, 17937, 35874, 1038353, 2076706, 3115059, 6230118, 9345177, 18690354]

約数ペア:

[(1, 18690354), (2, 9345177), (3, 6230118), (6, 3115059), (9, 2076706), (18, 1038353), (521, 35874), (1042, 17937), (1563, 11958), (1993, 9378), (3126, 5979), (3986, 4689)]