12988269

素因数分解:

$3^4\times 7^1\times {\mathrm{22907}}^1$

素因数の和:22926

約数の個数: 20

約数和(自身を含む): 22174944

約数和(自身を除く): 9186675

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 567, 22907, 68721, 160349, 206163, 481047, 618489, 1443141, 1855467, 4329423, 12988269]

約数ペア:

[(1, 12988269), (3, 4329423), (7, 1855467), (9, 1443141), (21, 618489), (27, 481047), (63, 206163), (81, 160349), (189, 68721), (567, 22907)]