31784481

素因数分解:

$3^4\times {\mathrm{89}}^1\times {\mathrm{4409}}^1$

素因数の和:4510

約数の個数: 20

約数和(自身を含む): 48024900

約数和(自身を除く): 16240419

約数列:

[1, 3, 9, 27, 81, 89, 267, 801, 2403, 4409, 7209, 13227, 39681, 119043, 357129, 392401, 1177203, 3531609, 10594827, 31784481]

約数ペア:

[(1, 31784481), (3, 10594827), (9, 3531609), (27, 1177203), (81, 392401), (89, 357129), (267, 119043), (801, 39681), (2403, 13227), (4409, 7209)]