20977855

素因数分解:

$5^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{3301}}^1$

素因数の和:3378

約数の個数: 16

約数和(自身を含む): 26627328

約数和(自身を除く): 5649473

約数列:

[1, 5, 31, 41, 155, 205, 1271, 3301, 6355, 16505, 102331, 135341, 511655, 676705, 4195571, 20977855]

約数ペア:

[(1, 20977855), (5, 4195571), (31, 676705), (41, 511655), (155, 135341), (205, 102331), (1271, 16505), (3301, 6355)]