21824990

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{198409}}^1$

素因数の和:198427

約数の個数: 16

約数和(自身を含む): 42856560

約数和(自身を除く): 21031570

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 198409, 396818, 992045, 1984090, 2182499, 4364998, 10912495, 21824990]

約数ペア:

[(1, 21824990), (2, 10912495), (5, 4364998), (10, 2182499), (11, 1984090), (22, 992045), (55, 396818), (110, 198409)]