20396871

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{179}}^1\times {\mathrm{1151}}^1$

素因数の和:1347

約数の個数: 24

約数和(自身を含む): 32348160

約数和(自身を除く): 11951289

約数列:

[1, 3, 9, 11, 33, 99, 179, 537, 1151, 1611, 1969, 3453, 5907, 10359, 12661, 17721, 37983, 113949, 206029, 618087, 1854261, 2266319, 6798957, 20396871]

約数ペア:

[(1, 20396871), (3, 6798957), (9, 2266319), (11, 1854261), (33, 618087), (99, 206029), (179, 113949), (537, 37983), (1151, 17721), (1611, 12661), (1969, 10359), (3453, 5907)]