21589510

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{199}}^1\times {\mathrm{571}}^1$

素因数の和:796

約数の個数: 32

約数和(自身を含む): 41184000

約数和(自身を除く): 19594490

約数列:

[1, 2, 5, 10, 19, 38, 95, 190, 199, 398, 571, 995, 1142, 1990, 2855, 3781, 5710, 7562, 10849, 18905, 21698, 37810, 54245, 108490, 113629, 227258, 568145, 1136290, 2158951, 4317902, 10794755, 21589510]

約数ペア:

[(1, 21589510), (2, 10794755), (5, 4317902), (10, 2158951), (19, 1136290), (38, 568145), (95, 227258), (190, 113629), (199, 108490), (398, 54245), (571, 37810), (995, 21698), (1142, 18905), (1990, 10849), (2855, 7562), (3781, 5710)]