20156479

素因数分解:

$7^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{3203}}^1$

素因数の和:3270

約数の個数: 16

約数和(自身を含む): 24606720

約数和(自身を除く): 4450241

約数列:

[1, 7, 29, 31, 203, 217, 899, 3203, 6293, 22421, 92887, 99293, 650209, 695051, 2879497, 20156479]

約数ペア:

[(1, 20156479), (7, 2879497), (29, 695051), (31, 650209), (203, 99293), (217, 92887), (899, 22421), (3203, 6293)]