21753640

素因数分解:

$2^3\times 5^1\times {\mathrm{543841}}^1$

素因数の和:543852

約数の個数: 16

約数和(自身を含む): 48945780

約数和(自身を除く): 27192140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 543841, 1087682, 2175364, 2719205, 4350728, 5438410, 10876820, 21753640]

約数ペア:

[(1, 21753640), (2, 10876820), (4, 5438410), (5, 4350728), (8, 2719205), (10, 2175364), (20, 1087682), (40, 543841)]