198804571

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{59}}^1\times {\mathrm{20929}}^1$

素因数の和:21018

約数の個数: 16

約数和(自身を含む): 241113600

約数和(自身を除く): 42309029

約数列:

[1, 7, 23, 59, 161, 413, 1357, 9499, 20929, 146503, 481367, 1234811, 3369569, 8643677, 28400653, 198804571]

約数ペア:

[(1, 198804571), (7, 28400653), (23, 8643677), (59, 3369569), (161, 1234811), (413, 481367), (1357, 146503), (9499, 20929)]