20967513

素因数分解:

$3^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{43411}}^1$

素因数の和:43444

約数の個数: 16

約数和(自身を含む): 33340416

約数和(自身を除く): 12372903

約数列:

[1, 3, 7, 21, 23, 69, 161, 483, 43411, 130233, 303877, 911631, 998453, 2995359, 6989171, 20967513]

約数ペア:

[(1, 20967513), (3, 6989171), (7, 2995359), (21, 998453), (23, 911631), (69, 303877), (161, 130233), (483, 43411)]