20025609

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{263}}^1\times {\mathrm{1493}}^1$

素因数の和:1776

約数の個数: 16

約数和(自身を含む): 28397952

約数和(自身を除く): 8372343

約数列:

[1, 3, 17, 51, 263, 789, 1493, 4471, 4479, 13413, 25381, 76143, 392659, 1177977, 6675203, 20025609]

約数ペア:

[(1, 20025609), (3, 6675203), (17, 1177977), (51, 392659), (263, 76143), (789, 25381), (1493, 13413), (4471, 4479)]