20018889

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{433}}^1\times {\mathrm{467}}^1$

素因数の和:917

約数の個数: 24

約数和(自身を含む): 31685472

約数和(自身を除く): 11666583

約数列:

[1, 3, 9, 11, 33, 99, 433, 467, 1299, 1401, 3897, 4203, 4763, 5137, 14289, 15411, 42867, 46233, 202211, 606633, 1819899, 2224321, 6672963, 20018889]

約数ペア:

[(1, 20018889), (3, 6672963), (9, 2224321), (11, 1819899), (33, 606633), (99, 202211), (433, 46233), (467, 42867), (1299, 15411), (1401, 14289), (3897, 5137), (4203, 4763)]