20512732221

素因数分解:

$3^3\times {\mathrm{1709}}^1\times {\mathrm{444547}}^1$

素因数の和:446265

約数の個数: 16

約数和(自身を含む): 30407083200

約数和(自身を除く): 9894350979

約数列:

[1, 3, 9, 27, 1709, 5127, 15381, 46143, 444547, 1333641, 4000923, 12002769, 759730823, 2279192469, 6837577407, 20512732221]

約数ペア:

[(1, 20512732221), (3, 6837577407), (9, 2279192469), (27, 759730823), (1709, 12002769), (5127, 4000923), (15381, 1333641), (46143, 444547)]