18389217

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{7237}}^1$

素因数の和:7269

約数の個数: 24

約数和(自身を含む): 30804928

約数和(自身を除く): 12415711

約数列:

[1, 3, 7, 11, 21, 33, 77, 121, 231, 363, 847, 2541, 7237, 21711, 50659, 79607, 151977, 238821, 557249, 875677, 1671747, 2627031, 6129739, 18389217]

約数ペア:

[(1, 18389217), (3, 6129739), (7, 2627031), (11, 1671747), (21, 875677), (33, 557249), (77, 238821), (121, 151977), (231, 79607), (363, 50659), (847, 21711), (2541, 7237)]