21198974

素因数分解:

$2^1\times {\mathrm{47}}^1\times {\mathrm{109}}^1\times {\mathrm{2069}}^1$

素因数の和:2227

約数の個数: 16

約数和(自身を含む): 32788800

約数和(自身を除く): 11589826

約数列:

[1, 2, 47, 94, 109, 218, 2069, 4138, 5123, 10246, 97243, 194486, 225521, 451042, 10599487, 21198974]

約数ペア:

[(1, 21198974), (2, 10599487), (47, 451042), (94, 225521), (109, 194486), (218, 97243), (2069, 10246), (4138, 5123)]