20386490

素因数分解:

$2^1\times 5^1\times {\mathrm{97}}^1\times {\mathrm{21017}}^1$

素因数の和:21121

約数の個数: 16

約数和(自身を含む): 37075752

約数和(自身を除く): 16689262

約数列:

[1, 2, 5, 10, 97, 194, 485, 970, 21017, 42034, 105085, 210170, 2038649, 4077298, 10193245, 20386490]

約数ペア:

[(1, 20386490), (2, 10193245), (5, 4077298), (10, 2038649), (97, 210170), (194, 105085), (485, 42034), (970, 21017)]