21231495

素因数分解:

$3^2\times 5^1\times {\mathrm{271}}^1\times {\mathrm{1741}}^1$

素因数の和:2023

約数の個数: 24

約数和(自身を含む): 36958272

約数和(自身を除く): 15726777

約数列:

[1, 3, 5, 9, 15, 45, 271, 813, 1355, 1741, 2439, 4065, 5223, 8705, 12195, 15669, 26115, 78345, 471811, 1415433, 2359055, 4246299, 7077165, 21231495]

約数ペア:

[(1, 21231495), (3, 7077165), (5, 4246299), (9, 2359055), (15, 1415433), (45, 471811), (271, 78345), (813, 26115), (1355, 15669), (1741, 12195), (2439, 8705), (4065, 5223)]