12921232

素因数分解:

$2^4\times {\mathrm{41}}^1\times {\mathrm{19697}}^1$

素因数の和:19746

約数の個数: 20

約数和(自身を含む): 25646796

約数和(自身を除く): 12725564

約数列:

[1, 2, 4, 8, 16, 41, 82, 164, 328, 656, 19697, 39394, 78788, 157576, 315152, 807577, 1615154, 3230308, 6460616, 12921232]

約数ペア:

[(1, 12921232), (2, 6460616), (4, 3230308), (8, 1615154), (16, 807577), (41, 315152), (82, 157576), (164, 78788), (328, 39394), (656, 19697)]