21479171

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{89}}^1\times {\mathrm{1499}}^1$

素因数の和:1618

約数の個数: 16

約数和(自身を含む): 25920000

約数和(自身を除く): 4440829

約数列:

[1, 7, 23, 89, 161, 623, 1499, 2047, 10493, 14329, 34477, 133411, 241339, 933877, 3068453, 21479171]

約数ペア:

[(1, 21479171), (7, 3068453), (23, 933877), (89, 241339), (161, 133411), (623, 34477), (1499, 14329), (2047, 10493)]