21699455

素因数分解:

$5^1\times {\mathrm{41}}^1\times {\mathrm{151}}^1\times {\mathrm{701}}^1$

素因数の和:898

約数の個数: 16

約数和(自身を含む): 26889408

約数和(自身を除く): 5189953

約数列:

[1, 5, 41, 151, 205, 701, 755, 3505, 6191, 28741, 30955, 105851, 143705, 529255, 4339891, 21699455]

約数ペア:

[(1, 21699455), (5, 4339891), (41, 529255), (151, 143705), (205, 105851), (701, 30955), (755, 28741), (3505, 6191)]