178281

素因数分解:

$3^4\times {\mathrm{31}}^1\times {\mathrm{71}}^1$

素因数の和:114

約数の個数: 20

約数和(自身を含む): 278784

約数和(自身を除く): 100503

約数列:

[1, 3, 9, 27, 31, 71, 81, 93, 213, 279, 639, 837, 1917, 2201, 2511, 5751, 6603, 19809, 59427, 178281]

約数ペア:

[(1, 178281), (3, 59427), (9, 19809), (27, 6603), (31, 5751), (71, 2511), (81, 2201), (93, 1917), (213, 837), (279, 639)]