21619510

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{196541}}^1$

素因数の和:196559

約数の個数: 16

約数和(自身を含む): 42453072

約数和(自身を除く): 20833562

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 196541, 393082, 982705, 1965410, 2161951, 4323902, 10809755, 21619510]

約数ペア:

[(1, 21619510), (2, 10809755), (5, 4323902), (10, 2161951), (11, 1965410), (22, 982705), (55, 393082), (110, 196541)]