21937721

素因数分解:

${\mathrm{13}}^2\times {\mathrm{271}}^1\times {\mathrm{479}}^1$

素因数の和:776

約数の個数: 12

約数和(自身を含む): 23892480

約数和(自身を除く): 1954759

約数列:

[1, 13, 169, 271, 479, 3523, 6227, 45799, 80951, 129809, 1687517, 21937721]

約数ペア:

[(1, 21937721), (13, 1687517), (169, 129809), (271, 80951), (479, 45799), (3523, 6227)]