20737171

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{7351}}^1$

素因数の和:7402

約数の個数: 16

約数和(自身を含む): 26349568

約数和(自身を除く): 5612397

約数列:

[1, 7, 13, 31, 91, 217, 403, 2821, 7351, 51457, 95563, 227881, 668941, 1595167, 2962453, 20737171]

約数ペア:

[(1, 20737171), (7, 2962453), (13, 1595167), (31, 668941), (91, 227881), (217, 95563), (403, 51457), (2821, 7351)]