20181306818

素因数分解:

$2^1\times {\mathrm{71}}^1\times {\mathrm{641}}^1\times {\mathrm{221719}}^1$

素因数の和:222433

約数の個数: 16

約数和(自身を含む): 30746355840

約数和(自身を除く): 10565049022

約数列:

[1, 2, 71, 142, 641, 1282, 45511, 91022, 221719, 443438, 15742049, 31484098, 142121879, 284243758, 10090653409, 20181306818]

約数ペア:

[(1, 20181306818), (2, 10090653409), (71, 284243758), (142, 142121879), (641, 31484098), (1282, 15742049), (45511, 443438), (91022, 221719)]