21365551

素因数分解:

${\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{139}}^1\times {\mathrm{163}}^1$

素因数の和:366

約数の個数: 16

約数和(自身を含む): 23143680

約数和(自身を除く): 1778129

約数列:

[1, 23, 41, 139, 163, 943, 3197, 3749, 5699, 6683, 22657, 131077, 153709, 521111, 928937, 21365551]

約数ペア:

[(1, 21365551), (23, 928937), (41, 521111), (139, 153709), (163, 131077), (943, 22657), (3197, 6683), (3749, 5699)]