17680537

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{193}}^1\times {\mathrm{569}}^1$

素因数の和:792

約数の個数: 16

約数和(自身を含む): 21231360

約数和(自身を除く): 3550823

約数列:

[1, 7, 23, 161, 193, 569, 1351, 3983, 4439, 13087, 31073, 91609, 109817, 768719, 2525791, 17680537]

約数ペア:

[(1, 17680537), (7, 2525791), (23, 768719), (161, 109817), (193, 91609), (569, 31073), (1351, 13087), (3983, 4439)]