18368649

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{8263}}^1$

素因数の和:8301

約数の個数: 24

約数和(自身を含む): 30080960

約数和(自身を除く): 11712311

約数列:

[1, 3, 9, 13, 19, 39, 57, 117, 171, 247, 741, 2223, 8263, 24789, 74367, 107419, 156997, 322257, 470991, 966771, 1412973, 2040961, 6122883, 18368649]

約数ペア:

[(1, 18368649), (3, 6122883), (9, 2040961), (13, 1412973), (19, 966771), (39, 470991), (57, 322257), (117, 156997), (171, 107419), (247, 74367), (741, 24789), (2223, 8263)]