21010018

素因数分解:

$2^1\times {\mathrm{59}}^1\times {\mathrm{263}}^1\times {\mathrm{677}}^1$

素因数の和:1001

約数の個数: 16

約数和(自身を含む): 32218560

約数和(自身を除く): 11208542

約数列:

[1, 2, 59, 118, 263, 526, 677, 1354, 15517, 31034, 39943, 79886, 178051, 356102, 10505009, 21010018]

約数ペア:

[(1, 21010018), (2, 10505009), (59, 356102), (118, 178051), (263, 79886), (526, 39943), (677, 31034), (1354, 15517)]