20625819

素因数分解:

$3^1\times {\mathrm{31}}^1\times {\mathrm{131}}^1\times {\mathrm{1693}}^1$

素因数の和:1858

約数の個数: 16

約数和(自身を含む): 28621824

約数和(自身を除く): 7996005

約数列:

[1, 3, 31, 93, 131, 393, 1693, 4061, 5079, 12183, 52483, 157449, 221783, 665349, 6875273, 20625819]

約数ペア:

[(1, 20625819), (3, 6875273), (31, 665349), (93, 221783), (131, 157449), (393, 52483), (1693, 12183), (4061, 5079)]