19642743

素因数分解:

$3^4\times {\mathrm{281}}^1\times {\mathrm{863}}^1$

素因数の和:1156

約数の個数: 20

約数和(自身を含む): 29481408

約数和(自身を除く): 9838665

約数列:

[1, 3, 9, 27, 81, 281, 843, 863, 2529, 2589, 7587, 7767, 22761, 23301, 69903, 242503, 727509, 2182527, 6547581, 19642743]

約数ペア:

[(1, 19642743), (3, 6547581), (9, 2182527), (27, 727509), (81, 242503), (281, 69903), (843, 23301), (863, 22761), (2529, 7767), (2589, 7587)]