21461908

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{389}}^1\times {\mathrm{1061}}^1$

素因数の和:1467

約数の個数: 24

約数和(自身を含む): 40589640

約数和(自身を除く): 19127732

約数列:

[1, 2, 4, 13, 26, 52, 389, 778, 1061, 1556, 2122, 4244, 5057, 10114, 13793, 20228, 27586, 55172, 412729, 825458, 1650916, 5365477, 10730954, 21461908]

約数ペア:

[(1, 21461908), (2, 10730954), (4, 5365477), (13, 1650916), (26, 825458), (52, 412729), (389, 55172), (778, 27586), (1061, 20228), (1556, 13793), (2122, 10114), (4244, 5057)]