65215815

素因数分解:

$3^1\times 5^1\times 7^2\times {\mathrm{88729}}^1$

素因数の和:88751

約数の個数: 24

約数和(自身を含む): 121382640

約数和(自身を除く): 56166825

約数列:

[1, 3, 5, 7, 15, 21, 35, 49, 105, 147, 245, 735, 88729, 266187, 443645, 621103, 1330935, 1863309, 3105515, 4347721, 9316545, 13043163, 21738605, 65215815]

約数ペア:

[(1, 65215815), (3, 21738605), (5, 13043163), (7, 9316545), (15, 4347721), (21, 3105515), (35, 1863309), (49, 1330935), (105, 621103), (147, 443645), (245, 266187), (735, 88729)]