20748513

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{137}}^1\times {\mathrm{2657}}^1$

素因数の和:2816

約数の個数: 16

約数和(自身を含む): 29344320

約数和(自身を除く): 8595807

約数列:

[1, 3, 19, 57, 137, 411, 2603, 2657, 7809, 7971, 50483, 151449, 364009, 1092027, 6916171, 20748513]

約数ペア:

[(1, 20748513), (3, 6916171), (19, 1092027), (57, 364009), (137, 151449), (411, 50483), (2603, 7971), (2657, 7809)]