19965153

素因数分解:

$3^1\times {\mathrm{13}}^2\times {\mathrm{53}}^1\times {\mathrm{743}}^1$

素因数の和:825

約数の個数: 24

約数和(自身を含む): 29408832

約数和(自身を除く): 9443679

約数列:

[1, 3, 13, 39, 53, 159, 169, 507, 689, 743, 2067, 2229, 8957, 9659, 26871, 28977, 39379, 118137, 125567, 376701, 511927, 1535781, 6655051, 19965153]

約数ペア:

[(1, 19965153), (3, 6655051), (13, 1535781), (39, 511927), (53, 376701), (159, 125567), (169, 118137), (507, 39379), (689, 28977), (743, 26871), (2067, 9659), (2229, 8957)]