66989187

素因数分解:

$3^4\times {\mathrm{151}}^1\times {\mathrm{5477}}^1$

素因数の和:5640

約数の個数: 20

約数和(自身を含む): 100751376

約数和(自身を除く): 33762189

約数列:

[1, 3, 9, 27, 81, 151, 453, 1359, 4077, 5477, 12231, 16431, 49293, 147879, 443637, 827027, 2481081, 7443243, 22329729, 66989187]

約数ペア:

[(1, 66989187), (3, 22329729), (9, 7443243), (27, 2481081), (81, 827027), (151, 443637), (453, 147879), (1359, 49293), (4077, 16431), (5477, 12231)]