21715485

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{3557}}^1$

素因数の和:3613

約数の個数: 32

約数和(自身を含む): 38938752

約数和(自身を除く): 17223267

約数列:

[1, 3, 5, 11, 15, 33, 37, 55, 111, 165, 185, 407, 555, 1221, 2035, 3557, 6105, 10671, 17785, 39127, 53355, 117381, 131609, 195635, 394827, 586905, 658045, 1447699, 1974135, 4343097, 7238495, 21715485]

約数ペア:

[(1, 21715485), (3, 7238495), (5, 4343097), (11, 1974135), (15, 1447699), (33, 658045), (37, 586905), (55, 394827), (111, 195635), (165, 131609), (185, 117381), (407, 53355), (555, 39127), (1221, 17785), (2035, 10671), (3557, 6105)]