78204609

素因数分解:

$3^4\times 7^1\times {\mathrm{137927}}^1$

素因数の和:137946

約数の個数: 20

約数和(自身を含む): 133514304

約数和(自身を除く): 55309695

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 567, 137927, 413781, 965489, 1241343, 2896467, 3724029, 8689401, 11172087, 26068203, 78204609]

約数ペア:

[(1, 78204609), (3, 26068203), (7, 11172087), (9, 8689401), (21, 3724029), (27, 2896467), (63, 1241343), (81, 965489), (189, 413781), (567, 137927)]