20702006

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{18517}}^1$

素因数の和:18575

約数の個数: 16

約数和(自身を含む): 34221264

約数和(自身を除く): 13519258

約数列:

[1, 2, 13, 26, 43, 86, 559, 1118, 18517, 37034, 240721, 481442, 796231, 1592462, 10351003, 20702006]

約数ペア:

[(1, 20702006), (2, 10351003), (13, 1592462), (26, 796231), (43, 481442), (86, 240721), (559, 37034), (1118, 18517)]