978180189

素因数分解:

$3^1\times 7^2\times {\mathrm{661}}^1\times {\mathrm{10067}}^1$

素因数の和:10745

約数の個数: 24

約数和(自身を含む): 1519623648

約数和(自身を除く): 541443459

約数列:

[1, 3, 7, 21, 49, 147, 661, 1983, 4627, 10067, 13881, 30201, 32389, 70469, 97167, 211407, 493283, 1479849, 6654287, 19962861, 46580009, 139740027, 326060063, 978180189]

約数ペア:

[(1, 978180189), (3, 326060063), (7, 139740027), (21, 46580009), (49, 19962861), (147, 6654287), (661, 1479849), (1983, 493283), (4627, 211407), (10067, 97167), (13881, 70469), (30201, 32389)]