20541501

素因数分解:

$3^2\times {\mathrm{79}}^1\times {\mathrm{167}}^1\times {\mathrm{173}}^1$

素因数の和:425

約数の個数: 24

約数和(自身を含む): 30401280

約数和(自身を除く): 9859779

約数列:

[1, 3, 9, 79, 167, 173, 237, 501, 519, 711, 1503, 1557, 13193, 13667, 28891, 39579, 41001, 86673, 118737, 123003, 260019, 2282389, 6847167, 20541501]

約数ペア:

[(1, 20541501), (3, 6847167), (9, 2282389), (79, 260019), (167, 123003), (173, 118737), (237, 86673), (501, 41001), (519, 39579), (711, 28891), (1503, 13667), (1557, 13193)]