20890394

素因数分解:

$2^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{64877}}^1$

素因数の和:64909

約数の個数: 16

約数和(自身を含む): 37369728

約数和(自身を除く): 16479334

約数列:

[1, 2, 7, 14, 23, 46, 161, 322, 64877, 129754, 454139, 908278, 1492171, 2984342, 10445197, 20890394]

約数ペア:

[(1, 20890394), (2, 10445197), (7, 2984342), (14, 1492171), (23, 908278), (46, 454139), (161, 129754), (322, 64877)]