254991303

素因数分解:

$3^2\times 7^1\times {\mathrm{191}}^1\times {\mathrm{21191}}^1$

素因数の和:21395

約数の個数: 24

約数和(自身を含む): 423161856

約数和(自身を除く): 168170553

約数列:

[1, 3, 7, 9, 21, 63, 191, 573, 1337, 1719, 4011, 12033, 21191, 63573, 148337, 190719, 445011, 1335033, 4047481, 12142443, 28332367, 36427329, 84997101, 254991303]

約数ペア:

[(1, 254991303), (3, 84997101), (7, 36427329), (9, 28332367), (21, 12142443), (63, 4047481), (191, 1335033), (573, 445011), (1337, 190719), (1719, 148337), (4011, 63573), (12033, 21191)]