21419981

素因数分解:

${\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{157}}^2$

素因数の和:404

約数の個数: 12

約数和(自身を含む): 23814720

約数和(自身を除く): 2394739

約数列:

[1, 11, 79, 157, 869, 1727, 12403, 24649, 136433, 271139, 1947271, 21419981]

約数ペア:

[(1, 21419981), (11, 1947271), (79, 271139), (157, 136433), (869, 24649), (1727, 12403)]