18501039

素因数分解:

$3^2\times {\mathrm{23}}^1\times {\mathrm{139}}^1\times {\mathrm{643}}^1$

素因数の和:811

約数の個数: 24

約数和(自身を含む): 28129920

約数和(自身を除く): 9628881

約数列:

[1, 3, 9, 23, 69, 139, 207, 417, 643, 1251, 1929, 3197, 5787, 9591, 14789, 28773, 44367, 89377, 133101, 268131, 804393, 2055671, 6167013, 18501039]

約数ペア:

[(1, 18501039), (3, 6167013), (9, 2055671), (23, 804393), (69, 268131), (139, 133101), (207, 89377), (417, 44367), (643, 28773), (1251, 14789), (1929, 9591), (3197, 5787)]