21495376

素因数分解:

$2^4\times 7^1\times {\mathrm{281}}^1\times {\mathrm{683}}^1$

素因数の和:979

約数の個数: 40

約数和(自身を含む): 47836224

約数和(自身を除く): 26340848

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 281, 562, 683, 1124, 1366, 1967, 2248, 2732, 3934, 4496, 4781, 5464, 7868, 9562, 10928, 15736, 19124, 31472, 38248, 76496, 191923, 383846, 767692, 1343461, 1535384, 2686922, 3070768, 5373844, 10747688, 21495376]

約数ペア:

[(1, 21495376), (2, 10747688), (4, 5373844), (7, 3070768), (8, 2686922), (14, 1535384), (16, 1343461), (28, 767692), (56, 383846), (112, 191923), (281, 76496), (562, 38248), (683, 31472), (1124, 19124), (1366, 15736), (1967, 10928), (2248, 9562), (2732, 7868), (3934, 5464), (4496, 4781)]