20641288

素因数分解:

$2^3\times {\mathrm{31}}^1\times {\mathrm{83231}}^1$

素因数の和:83268

約数の個数: 16

約数和(自身を含む): 39951360

約数和(自身を除く): 19310072

約数列:

[1, 2, 4, 8, 31, 62, 124, 248, 83231, 166462, 332924, 665848, 2580161, 5160322, 10320644, 20641288]

約数ペア:

[(1, 20641288), (2, 10320644), (4, 5160322), (8, 2580161), (31, 665848), (62, 332924), (124, 166462), (248, 83231)]