20951288

素因数分解:

$2^3\times {\mathrm{31}}^1\times {\mathrm{84481}}^1$

素因数の和:84518

約数の個数: 16

約数和(自身を含む): 40551360

約数和(自身を除く): 19600072

約数列:

[1, 2, 4, 8, 31, 62, 124, 248, 84481, 168962, 337924, 675848, 2618911, 5237822, 10475644, 20951288]

約数ペア:

[(1, 20951288), (2, 10475644), (4, 5237822), (8, 2618911), (31, 675848), (62, 337924), (124, 168962), (248, 84481)]