19921495

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{281}}^1\times {\mathrm{1289}}^1$

素因数の和:1586

約数の個数: 16

約数和(自身を含む): 26192160

約数和(自身を除く): 6270665

約数列:

[1, 5, 11, 55, 281, 1289, 1405, 3091, 6445, 14179, 15455, 70895, 362209, 1811045, 3984299, 19921495]

約数ペア:

[(1, 19921495), (5, 3984299), (11, 1811045), (55, 362209), (281, 70895), (1289, 15455), (1405, 14179), (3091, 6445)]