78847209

素因数分解:

$3^3\times 7^1\times {\mathrm{417181}}^1$

素因数の和:417197

約数の個数: 16

約数和(自身を含む): 133498240

約数和(自身を除く): 54651031

約数列:

[1, 3, 7, 9, 21, 27, 63, 189, 417181, 1251543, 2920267, 3754629, 8760801, 11263887, 26282403, 78847209]

約数ペア:

[(1, 78847209), (3, 26282403), (7, 11263887), (9, 8760801), (21, 3754629), (27, 2920267), (63, 1251543), (189, 417181)]