20507963

素因数分解:

$7^1\times {\mathrm{67}}^1\times {\mathrm{73}}^1\times {\mathrm{599}}^1$

素因数の和:746

約数の個数: 16

約数和(自身を含む): 24153600

約数和(自身を除く): 3645637

約数列:

[1, 7, 67, 73, 469, 511, 599, 4193, 4891, 34237, 40133, 43727, 280931, 306089, 2929709, 20507963]

約数ペア:

[(1, 20507963), (7, 2929709), (67, 306089), (73, 280931), (469, 43727), (511, 40133), (599, 34237), (4193, 4891)]