18730481

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{349}}^1$

素因数の和:425

約数の個数: 32

約数和(自身を含む): 25401600

約数和(自身を除く): 6671119

約数列:

[1, 7, 11, 17, 41, 77, 119, 187, 287, 349, 451, 697, 1309, 2443, 3157, 3839, 4879, 5933, 7667, 14309, 26873, 41531, 53669, 65263, 100163, 157399, 243253, 456841, 1101793, 1702771, 2675783, 18730481]

約数ペア:

[(1, 18730481), (7, 2675783), (11, 1702771), (17, 1101793), (41, 456841), (77, 243253), (119, 157399), (187, 100163), (287, 65263), (349, 53669), (451, 41531), (697, 26873), (1309, 14309), (2443, 7667), (3157, 5933), (3839, 4879)]