21404799

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{113}}^1\times {\mathrm{1619}}^1$

素因数の和:1751

約数の個数: 24

約数和(自身を含む): 33611760

約数和(自身を除く): 12206961

約数列:

[1, 3, 9, 13, 39, 113, 117, 339, 1017, 1469, 1619, 4407, 4857, 13221, 14571, 21047, 63141, 182947, 189423, 548841, 1646523, 2378311, 7134933, 21404799]

約数ペア:

[(1, 21404799), (3, 7134933), (9, 2378311), (13, 1646523), (39, 548841), (113, 189423), (117, 182947), (339, 63141), (1017, 21047), (1469, 14571), (1619, 13221), (4407, 4857)]