20688520587

素因数分解:

$3^1\times 7^1\times {\mathrm{197}}^1\times {\mathrm{5000851}}^1$

素因数の和:5001058

約数の個数: 16

約数和(自身を含む): 31685398272

約数和(自身を除く): 10996877685

約数列:

[1, 3, 7, 21, 197, 591, 1379, 4137, 5000851, 15002553, 35005957, 105017871, 985167647, 2955502941, 6896173529, 20688520587]

約数ペア:

[(1, 20688520587), (3, 6896173529), (7, 2955502941), (21, 985167647), (197, 105017871), (591, 35005957), (1379, 15002553), (4137, 5000851)]