21878246

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{11527}}^1$

素因数の和:11615

約数の個数: 16

約数和(自身を含む): 35829024

約数和(自身を除く): 13950778

約数列:

[1, 2, 13, 26, 73, 146, 949, 1898, 11527, 23054, 149851, 299702, 841471, 1682942, 10939123, 21878246]

約数ペア:

[(1, 21878246), (2, 10939123), (13, 1682942), (26, 841471), (73, 299702), (146, 149851), (949, 23054), (1898, 11527)]