20990470

素因数分解:

$2^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{56731}}^1$

素因数の和:56775

約数の個数: 16

約数和(自身を含む): 38804688

約数和(自身を除く): 17814218

約数列:

[1, 2, 5, 10, 37, 74, 185, 370, 56731, 113462, 283655, 567310, 2099047, 4198094, 10495235, 20990470]

約数ペア:

[(1, 20990470), (2, 10495235), (5, 4198094), (10, 2099047), (37, 567310), (74, 283655), (185, 113462), (370, 56731)]