20541451

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{3767}}^1$

素因数の和:3834

約数の個数: 16

約数和(自身を含む): 25320960

約数和(自身を除く): 4779509

約数列:

[1, 7, 19, 41, 133, 287, 779, 3767, 5453, 26369, 71573, 154447, 501011, 1081129, 2934493, 20541451]

約数ペア:

[(1, 20541451), (7, 2934493), (19, 1081129), (41, 501011), (133, 154447), (287, 71573), (779, 26369), (3767, 5453)]