20491449

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{6977}}^1$

素因数の和:7080

約数の個数: 16

約数和(自身を含む): 30144960

約数和(自身を除く): 9653511

約数列:

[1, 3, 11, 33, 89, 267, 979, 2937, 6977, 20931, 76747, 230241, 620953, 1862859, 6830483, 20491449]

約数ペア:

[(1, 20491449), (3, 6830483), (11, 1862859), (33, 620953), (89, 230241), (267, 76747), (979, 20931), (2937, 6977)]