20949733

素因数分解:

$7^1\times {\mathrm{37}}^1\times {\mathrm{47}}^1\times {\mathrm{1721}}^1$

素因数の和:1812

約数の個数: 16

約数和(自身を含む): 25127424

約数和(自身を除く): 4177691

約数列:

[1, 7, 37, 47, 259, 329, 1721, 1739, 12047, 12173, 63677, 80887, 445739, 566209, 2992819, 20949733]

約数ペア:

[(1, 20949733), (7, 2992819), (37, 566209), (47, 445739), (259, 80887), (329, 63677), (1721, 12173), (1739, 12047)]