978174711

素因数分解:

$3^4\times {\mathrm{61}}^1\times {\mathrm{197971}}^1$

素因数の和:198044

約数の個数: 20

約数和(自身を含む): 1485185944

約数和(自身を除く): 507011233

約数列:

[1, 3, 9, 27, 61, 81, 183, 549, 1647, 4941, 197971, 593913, 1781739, 5345217, 12076231, 16035651, 36228693, 108686079, 326058237, 978174711]

約数ペア:

[(1, 978174711), (3, 326058237), (9, 108686079), (27, 36228693), (61, 16035651), (81, 12076231), (183, 5345217), (549, 1781739), (1647, 593913), (4941, 197971)]