15790221

素因数分解:

$3^4\times {\mathrm{151}}^1\times {\mathrm{1291}}^1$

素因数の和:1454

約数の個数: 20

約数和(自身を含む): 23762464

約数和(自身を除く): 7972243

約数列:

[1, 3, 9, 27, 81, 151, 453, 1291, 1359, 3873, 4077, 11619, 12231, 34857, 104571, 194941, 584823, 1754469, 5263407, 15790221]

約数ペア:

[(1, 15790221), (3, 5263407), (9, 1754469), (27, 584823), (81, 194941), (151, 104571), (453, 34857), (1291, 12231), (1359, 11619), (3873, 4077)]