20487951

素因数分解:

$3^3\times {\mathrm{11}}^1\times {\mathrm{101}}^1\times {\mathrm{683}}^1$

素因数の和:804

約数の個数: 32

約数和(自身を含む): 33488640

約数和(自身を除く): 13000689

約数列:

[1, 3, 9, 11, 27, 33, 99, 101, 297, 303, 683, 909, 1111, 2049, 2727, 3333, 6147, 7513, 9999, 18441, 22539, 29997, 67617, 68983, 202851, 206949, 620847, 758813, 1862541, 2276439, 6829317, 20487951]

約数ペア:

[(1, 20487951), (3, 6829317), (9, 2276439), (11, 1862541), (27, 758813), (33, 620847), (99, 206949), (101, 202851), (297, 68983), (303, 67617), (683, 29997), (909, 22539), (1111, 18441), (2049, 9999), (2727, 7513), (3333, 6147)]