13920985

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{2711}}^1$

素因数の和:2808

約数の個数: 16

約数和(自身を含む): 18224640

約数和(自身を除く): 4303655

約数列:

[1, 5, 13, 65, 79, 395, 1027, 2711, 5135, 13555, 35243, 176215, 214169, 1070845, 2784197, 13920985]

約数ペア:

[(1, 13920985), (5, 2784197), (13, 1070845), (65, 214169), (79, 176215), (395, 35243), (1027, 13555), (2711, 5135)]