20615686

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{227}}^1\times {\mathrm{499}}^1$

素因数の和:748

約数の個数: 32

約数和(自身を含む): 38304000

約数和(自身を除く): 17688314

約数列:

[1, 2, 7, 13, 14, 26, 91, 182, 227, 454, 499, 998, 1589, 2951, 3178, 3493, 5902, 6487, 6986, 12974, 20657, 41314, 45409, 90818, 113273, 226546, 792911, 1472549, 1585822, 2945098, 10307843, 20615686]

約数ペア:

[(1, 20615686), (2, 10307843), (7, 2945098), (13, 1585822), (14, 1472549), (26, 792911), (91, 226546), (182, 113273), (227, 90818), (454, 45409), (499, 41314), (998, 20657), (1589, 12974), (2951, 6986), (3178, 6487), (3493, 5902)]