13640157

素因数分解:

$3^4\times {\mathrm{19}}^1\times {\mathrm{8863}}^1$

素因数の和:8894

約数の個数: 20

約数和(自身を含む): 21450880

約数和(自身を除く): 7810723

約数列:

[1, 3, 9, 19, 27, 57, 81, 171, 513, 1539, 8863, 26589, 79767, 168397, 239301, 505191, 717903, 1515573, 4546719, 13640157]

約数ペア:

[(1, 13640157), (3, 4546719), (9, 1515573), (19, 717903), (27, 505191), (57, 239301), (81, 168397), (171, 79767), (513, 26589), (1539, 8863)]