28540251

素因数分解:

$3^2\times {\mathrm{79}}^1\times {\mathrm{137}}^1\times {\mathrm{293}}^1$

素因数の和:515

約数の個数: 24

約数和(自身を含む): 42194880

約数和(自身を除く): 13654629

約数列:

[1, 3, 9, 79, 137, 237, 293, 411, 711, 879, 1233, 2637, 10823, 23147, 32469, 40141, 69441, 97407, 120423, 208323, 361269, 3171139, 9513417, 28540251]

約数ペア:

[(1, 28540251), (3, 9513417), (9, 3171139), (79, 361269), (137, 208323), (237, 120423), (293, 97407), (411, 69441), (711, 40141), (879, 32469), (1233, 23147), (2637, 10823)]