64554021

素因数分解:

$3^2\times 7^2\times {\mathrm{146381}}^1$

素因数の和:146401

約数の個数: 18

約数和(自身を含む): 108469062

約数和(自身を除く): 43915041

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 441, 146381, 439143, 1024667, 1317429, 3074001, 7172669, 9222003, 21518007, 64554021]

約数ペア:

[(1, 64554021), (3, 21518007), (7, 9222003), (9, 7172669), (21, 3074001), (49, 1317429), (63, 1024667), (147, 439143), (441, 146381)]