12509721

素因数分解:

$3^4\times 7^1\times {\mathrm{22063}}^1$

素因数の和:22082

約数の個数: 20

約数和(自身を含む): 21357952

約数和(自身を除く): 8848231

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 567, 22063, 66189, 154441, 198567, 463323, 595701, 1389969, 1787103, 4169907, 12509721]

約数ペア:

[(1, 12509721), (3, 4169907), (7, 1787103), (9, 1389969), (21, 595701), (27, 463323), (63, 198567), (81, 154441), (189, 66189), (567, 22063)]