20279404

素因数分解:

$2^2\times {\mathrm{37}}^1\times {\mathrm{263}}^1\times {\mathrm{521}}^1$

素因数の和:825

約数の個数: 24

約数和(自身を含む): 36656928

約数和(自身を除く): 16377524

約数列:

[1, 2, 4, 37, 74, 148, 263, 521, 526, 1042, 1052, 2084, 9731, 19277, 19462, 38554, 38924, 77108, 137023, 274046, 548092, 5069851, 10139702, 20279404]

約数ペア:

[(1, 20279404), (2, 10139702), (4, 5069851), (37, 548092), (74, 274046), (148, 137023), (263, 77108), (521, 38924), (526, 38554), (1042, 19462), (1052, 19277), (2084, 9731)]