19828705

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{107}}^1\times {\mathrm{2851}}^1$

素因数の和:2976

約数の個数: 16

約数和(自身を含む): 25873344

約数和(自身を除く): 6044639

約数列:

[1, 5, 13, 65, 107, 535, 1391, 2851, 6955, 14255, 37063, 185315, 305057, 1525285, 3965741, 19828705]

約数ペア:

[(1, 19828705), (5, 3965741), (13, 1525285), (65, 305057), (107, 185315), (535, 37063), (1391, 14255), (2851, 6955)]