20371127309

素因数分解:

${\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{639857}}^1$

素因数の和:639980

約数の個数: 16

約数和(自身を含む): 22932510720

約数和(自身を除く): 2561383411

約数列:

[1, 13, 31, 79, 403, 1027, 2449, 31837, 639857, 8318141, 19835567, 50548703, 257862371, 657133139, 1567009793, 20371127309]

約数ペア:

[(1, 20371127309), (13, 1567009793), (31, 657133139), (79, 257862371), (403, 50548703), (1027, 19835567), (2449, 8318141), (31837, 639857)]