20395767

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{57131}}^1$

素因数の和:57158

約数の個数: 16

約数和(自身を含む): 32908032

約数和(自身を除く): 12512265

約数列:

[1, 3, 7, 17, 21, 51, 119, 357, 57131, 171393, 399917, 971227, 1199751, 2913681, 6798589, 20395767]

約数ペア:

[(1, 20395767), (3, 6798589), (7, 2913681), (17, 1199751), (21, 971227), (51, 399917), (119, 171393), (357, 57131)]