20310921

素因数分解:

$3^2\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{1693}}^1$

素因数の和:1773

約数の個数: 24

約数和(自身を含む): 31006976

約数和(自身を除く): 10696055

約数列:

[1, 3, 9, 31, 43, 93, 129, 279, 387, 1333, 1693, 3999, 5079, 11997, 15237, 52483, 72799, 157449, 218397, 472347, 655191, 2256769, 6770307, 20310921]

約数ペア:

[(1, 20310921), (3, 6770307), (9, 2256769), (31, 655191), (43, 472347), (93, 218397), (129, 157449), (279, 72799), (387, 52483), (1333, 15237), (1693, 11997), (3999, 5079)]