20424872

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{277}}^1\times {\mathrm{709}}^1$

素因数の和:1005

約数の個数: 32

約数和(自身を含む): 41449800

約数和(自身を除く): 21024928

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 277, 554, 709, 1108, 1418, 2216, 2836, 3601, 5672, 7202, 9217, 14404, 18434, 28808, 36868, 73736, 196393, 392786, 785572, 1571144, 2553109, 5106218, 10212436, 20424872]

約数ペア:

[(1, 20424872), (2, 10212436), (4, 5106218), (8, 2553109), (13, 1571144), (26, 785572), (52, 392786), (104, 196393), (277, 73736), (554, 36868), (709, 28808), (1108, 18434), (1418, 14404), (2216, 9217), (2836, 7202), (3601, 5672)]