18808839

素因数分解:

$3^2\times 7^1\times {\mathrm{37}}^1\times {\mathrm{8069}}^1$

素因数の和:8119

約数の個数: 24

約数和(自身を含む): 31892640

約数和(自身を除く): 13083801

約数列:

[1, 3, 7, 9, 21, 37, 63, 111, 259, 333, 777, 2331, 8069, 24207, 56483, 72621, 169449, 298553, 508347, 895659, 2089871, 2686977, 6269613, 18808839]

約数ペア:

[(1, 18808839), (3, 6269613), (7, 2686977), (9, 2089871), (21, 895659), (37, 508347), (63, 298553), (111, 169449), (259, 72621), (333, 56483), (777, 24207), (2331, 8069)]