28122717

素因数分解:

$3^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{10069}}^1$

素因数の和:10105

約数の個数: 24

約数和(自身を含む): 45919200

約数和(自身を除く): 17796483

約数列:

[1, 3, 7, 19, 21, 49, 57, 133, 147, 399, 931, 2793, 10069, 30207, 70483, 191311, 211449, 493381, 573933, 1339177, 1480143, 4017531, 9374239, 28122717]

約数ペア:

[(1, 28122717), (3, 9374239), (7, 4017531), (19, 1480143), (21, 1339177), (49, 573933), (57, 493381), (133, 211449), (147, 191311), (399, 70483), (931, 30207), (2793, 10069)]