20413316

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{191}}^1\times {\mathrm{347}}^1$

素因数の和:560

約数の個数: 48

約数和(自身を含む): 44900352

約数和(自身を除く): 24487036

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 77, 154, 191, 308, 347, 382, 694, 764, 1337, 1388, 2101, 2429, 2674, 3817, 4202, 4858, 5348, 7634, 8404, 9716, 14707, 15268, 26719, 29414, 53438, 58828, 66277, 106876, 132554, 265108, 463939, 729047, 927878, 1458094, 1855756, 2916188, 5103329, 10206658, 20413316]

約数ペア:

[(1, 20413316), (2, 10206658), (4, 5103329), (7, 2916188), (11, 1855756), (14, 1458094), (22, 927878), (28, 729047), (44, 463939), (77, 265108), (154, 132554), (191, 106876), (308, 66277), (347, 58828), (382, 53438), (694, 29414), (764, 26719), (1337, 15268), (1388, 14707), (2101, 9716), (2429, 8404), (2674, 7634), (3817, 5348), (4202, 4858)]