20168919

素因数分解:

$3^4\times {\mathrm{17}}^1\times {\mathrm{97}}^1\times {\mathrm{151}}^1$

素因数の和:277

約数の個数: 40

約数和(自身を含む): 32443488

約数和(自身を除く): 12274569

約数列:

[1, 3, 9, 17, 27, 51, 81, 97, 151, 153, 291, 453, 459, 873, 1359, 1377, 1649, 2567, 2619, 4077, 4947, 7701, 7857, 12231, 14647, 14841, 23103, 43941, 44523, 69309, 131823, 133569, 207927, 248999, 395469, 746997, 1186407, 2240991, 6722973, 20168919]

約数ペア:

[(1, 20168919), (3, 6722973), (9, 2240991), (17, 1186407), (27, 746997), (51, 395469), (81, 248999), (97, 207927), (151, 133569), (153, 131823), (291, 69309), (453, 44523), (459, 43941), (873, 23103), (1359, 14841), (1377, 14647), (1649, 12231), (2567, 7857), (2619, 7701), (4077, 4947)]