20913189

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{20443}}^1$

素因数の和:20488

約数の個数: 16

約数和(自身を含む): 31401984

約数和(自身を除く): 10488795

約数列:

[1, 3, 11, 31, 33, 93, 341, 1023, 20443, 61329, 224873, 633733, 674619, 1901199, 6971063, 20913189]

約数ペア:

[(1, 20913189), (3, 6971063), (11, 1901199), (31, 674619), (33, 633733), (93, 224873), (341, 61329), (1023, 20443)]