18480238

素因数分解:

$2^1\times 7^1\times {\mathrm{661}}^1\times {\mathrm{1997}}^1$

素因数の和:2667

約数の個数: 16

約数和(自身を含む): 31744224

約数和(自身を除く): 13263986

約数列:

[1, 2, 7, 14, 661, 1322, 1997, 3994, 4627, 9254, 13979, 27958, 1320017, 2640034, 9240119, 18480238]

約数ペア:

[(1, 18480238), (2, 9240119), (7, 2640034), (14, 1320017), (661, 27958), (1322, 13979), (1997, 9254), (3994, 4627)]