20656286

素因数分解:

$2^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{39877}}^1$

素因数の和:39923

約数の個数: 16

約数和(自身を含む): 36368736

約数和(自身を除く): 15712450

約数列:

[1, 2, 7, 14, 37, 74, 259, 518, 39877, 79754, 279139, 558278, 1475449, 2950898, 10328143, 20656286]

約数ペア:

[(1, 20656286), (2, 10328143), (7, 2950898), (14, 1475449), (37, 558278), (74, 279139), (259, 79754), (518, 39877)]