21934172

素因数分解:

$2^2\times {\mathrm{13}}^2\times {\mathrm{71}}^1\times {\mathrm{457}}^1$

素因数の和:558

約数の個数: 36

約数和(自身を含む): 42242256

約数和(自身を除く): 20308084

約数列:

[1, 2, 4, 13, 26, 52, 71, 142, 169, 284, 338, 457, 676, 914, 923, 1828, 1846, 3692, 5941, 11882, 11999, 23764, 23998, 32447, 47996, 64894, 77233, 129788, 154466, 308932, 421811, 843622, 1687244, 5483543, 10967086, 21934172]

約数ペア:

[(1, 21934172), (2, 10967086), (4, 5483543), (13, 1687244), (26, 843622), (52, 421811), (71, 308932), (142, 154466), (169, 129788), (284, 77233), (338, 64894), (457, 47996), (676, 32447), (914, 23998), (923, 23764), (1828, 11999), (1846, 11882), (3692, 5941)]