20685291

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{7043}}^1$

素因数の和:7146

約数の個数: 16

約数和(自身を含む): 30430080

約数和(自身を除く): 9744789

約数列:

[1, 3, 11, 33, 89, 267, 979, 2937, 7043, 21129, 77473, 232419, 626827, 1880481, 6895097, 20685291]

約数ペア:

[(1, 20685291), (3, 6895097), (11, 1880481), (33, 626827), (89, 232419), (267, 77473), (979, 21129), (2937, 7043)]