18873205

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{103}}^1\times {\mathrm{2819}}^1$

素因数の和:2940

約数の個数: 16

約数和(自身を含む): 24635520

約数和(自身を除く): 5762315

約数列:

[1, 5, 13, 65, 103, 515, 1339, 2819, 6695, 14095, 36647, 183235, 290357, 1451785, 3774641, 18873205]

約数ペア:

[(1, 18873205), (5, 3774641), (13, 1451785), (65, 290357), (103, 183235), (515, 36647), (1339, 14095), (2819, 6695)]