21471749

素因数分解:

${\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{71}}^1\times {\mathrm{541}}^1$

素因数の和:668

約数の個数: 16

約数和(自身を含む): 24038784

約数和(自身を除く): 2567035

約数列:

[1, 13, 43, 71, 541, 559, 923, 3053, 7033, 23263, 38411, 39689, 302419, 499343, 1651673, 21471749]

約数ペア:

[(1, 21471749), (13, 1651673), (43, 499343), (71, 302419), (541, 39689), (559, 38411), (923, 23263), (3053, 7033)]