20538715

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{103}}^1\times {\mathrm{2099}}^1$

素因数の和:2226

約数の個数: 16

約数和(自身を含む): 26208000

約数和(自身を除く): 5669285

約数列:

[1, 5, 19, 95, 103, 515, 1957, 2099, 9785, 10495, 39881, 199405, 216197, 1080985, 4107743, 20538715]

約数ペア:

[(1, 20538715), (5, 4107743), (19, 1080985), (95, 216197), (103, 199405), (515, 39881), (1957, 10495), (2099, 9785)]