21081844

素因数分解:

$2^2\times 7^1\times {\mathrm{61}}^1\times {\mathrm{12343}}^1$

素因数の和:12415

約数の個数: 24

約数和(自身を含む): 42858368

約数和(自身を除く): 21776524

約数列:

[1, 2, 4, 7, 14, 28, 61, 122, 244, 427, 854, 1708, 12343, 24686, 49372, 86401, 172802, 345604, 752923, 1505846, 3011692, 5270461, 10540922, 21081844]

約数ペア:

[(1, 21081844), (2, 10540922), (4, 5270461), (7, 3011692), (14, 1505846), (28, 752923), (61, 345604), (122, 172802), (244, 86401), (427, 49372), (854, 24686), (1708, 12343)]