21496270

素因数分解:

$2^1\times 5^1\times {\mathrm{53}}^1\times {\mathrm{40559}}^1$

素因数の和:40619

約数の個数: 16

約数和(自身を含む): 39424320

約数和(自身を除く): 17928050

約数列:

[1, 2, 5, 10, 53, 106, 265, 530, 40559, 81118, 202795, 405590, 2149627, 4299254, 10748135, 21496270]

約数ペア:

[(1, 21496270), (2, 10748135), (5, 4299254), (10, 2149627), (53, 405590), (106, 202795), (265, 81118), (530, 40559)]