21055345

素因数分解:

$5^1\times {\mathrm{41}}^1\times {\mathrm{271}}^1\times {\mathrm{379}}^1$

素因数の和:696

約数の個数: 16

約数和(自身を含む): 26046720

約数和(自身を除く): 4991375

約数列:

[1, 5, 41, 205, 271, 379, 1355, 1895, 11111, 15539, 55555, 77695, 102709, 513545, 4211069, 21055345]

約数ペア:

[(1, 21055345), (5, 4211069), (41, 513545), (205, 102709), (271, 77695), (379, 55555), (1355, 15539), (1895, 11111)]