20509463

素因数分解:

${\mathrm{13}}^1\times {\mathrm{17}}^2\times {\mathrm{53}}^1\times {\mathrm{103}}^1$

素因数の和:203

約数の個数: 24

約数和(自身を含む): 24137568

約数和(自身を除く): 3628105

約数列:

[1, 13, 17, 53, 103, 221, 289, 689, 901, 1339, 1751, 3757, 5459, 11713, 15317, 22763, 29767, 70967, 92803, 199121, 386971, 1206439, 1577651, 20509463]

約数ペア:

[(1, 20509463), (13, 1577651), (17, 1206439), (53, 386971), (103, 199121), (221, 92803), (289, 70967), (689, 29767), (901, 22763), (1339, 15317), (1751, 11713), (3757, 5459)]