20247731

素因数分解:

$7^2\times {\mathrm{17}}^1\times {\mathrm{109}}^1\times {\mathrm{223}}^1$

素因数の和:363

約数の個数: 24

約数和(自身を含む): 25280640

約数和(自身を除く): 5032909

約数列:

[1, 7, 17, 49, 109, 119, 223, 763, 833, 1561, 1853, 3791, 5341, 10927, 12971, 24307, 26537, 90797, 170149, 185759, 413219, 1191043, 2892533, 20247731]

約数ペア:

[(1, 20247731), (7, 2892533), (17, 1191043), (49, 413219), (109, 185759), (119, 170149), (223, 90797), (763, 26537), (833, 24307), (1561, 12971), (1853, 10927), (3791, 5341)]