20859909

素因数分解:

$3^1\times 7^1\times {\mathrm{89}}^1\times {\mathrm{11161}}^1$

素因数の和:11260

約数の個数: 16

約数和(自身を含む): 32146560

約数和(自身を除く): 11286651

約数列:

[1, 3, 7, 21, 89, 267, 623, 1869, 11161, 33483, 78127, 234381, 993329, 2979987, 6953303, 20859909]

約数ペア:

[(1, 20859909), (3, 6953303), (7, 2979987), (21, 993329), (89, 234381), (267, 78127), (623, 33483), (1869, 11161)]