21209852

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{149}}^1\times {\mathrm{1873}}^1$

素因数の和:2045

約数の個数: 24

約数和(自身を含む): 39354000

約数和(自身を除く): 18144148

約数列:

[1, 2, 4, 19, 38, 76, 149, 298, 596, 1873, 2831, 3746, 5662, 7492, 11324, 35587, 71174, 142348, 279077, 558154, 1116308, 5302463, 10604926, 21209852]

約数ペア:

[(1, 21209852), (2, 10604926), (4, 5302463), (19, 1116308), (38, 558154), (76, 279077), (149, 142348), (298, 71174), (596, 35587), (1873, 11324), (2831, 7492), (3746, 5662)]