868401

素因数分解:

$3^4\times {\mathrm{71}}^1\times {\mathrm{151}}^1$

素因数の和:234

約数の個数: 20

約数和(自身を含む): 1324224

約数和(自身を除く): 455823

約数列:

[1, 3, 9, 27, 71, 81, 151, 213, 453, 639, 1359, 1917, 4077, 5751, 10721, 12231, 32163, 96489, 289467, 868401]

約数ペア:

[(1, 868401), (3, 289467), (9, 96489), (27, 32163), (71, 12231), (81, 10721), (151, 5751), (213, 4077), (453, 1917), (639, 1359)]