18977231

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{9067}}^1$

素因数の和:9110

約数の個数: 16

約数和(自身を含む): 24374784

約数和(自身を除く): 5397553

約数列:

[1, 7, 13, 23, 91, 161, 299, 2093, 9067, 63469, 117871, 208541, 825097, 1459787, 2711033, 18977231]

約数ペア:

[(1, 18977231), (7, 2711033), (13, 1459787), (23, 825097), (91, 208541), (161, 117871), (299, 63469), (2093, 9067)]