78803221

素因数分解:

$7^4\times {\mathrm{23}}^1\times {\mathrm{1427}}^1$

素因数の和:1478

約数の個数: 20

約数和(自身を含む): 95995872

約数和(自身を除く): 17192651

約数列:

[1, 7, 23, 49, 161, 343, 1127, 1427, 2401, 7889, 9989, 32821, 55223, 69923, 229747, 489461, 1608229, 3426227, 11257603, 78803221]

約数ペア:

[(1, 78803221), (7, 11257603), (23, 3426227), (49, 1608229), (161, 489461), (343, 229747), (1127, 69923), (1427, 55223), (2401, 32821), (7889, 9989)]