20870685

素因数分解:

$3^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{3833}}^1$

素因数の和:3866

約数の個数: 36

約数和(自身を含む): 39773916

約数和(自身を除く): 18903231

約数列:

[1, 3, 5, 9, 11, 15, 33, 45, 55, 99, 121, 165, 363, 495, 605, 1089, 1815, 3833, 5445, 11499, 19165, 34497, 42163, 57495, 126489, 172485, 210815, 379467, 463793, 632445, 1391379, 1897335, 2318965, 4174137, 6956895, 20870685]

約数ペア:

[(1, 20870685), (3, 6956895), (5, 4174137), (9, 2318965), (11, 1897335), (15, 1391379), (33, 632445), (45, 463793), (55, 379467), (99, 210815), (121, 172485), (165, 126489), (363, 57495), (495, 42163), (605, 34497), (1089, 19165), (1815, 11499), (3833, 5445)]