20015121

素因数分解:

$3^1\times 7^1\times {\mathrm{89}}^1\times {\mathrm{10709}}^1$

素因数の和:10808

約数の個数: 16

約数和(自身を含む): 30844800

約数和(自身を除く): 10829679

約数列:

[1, 3, 7, 21, 89, 267, 623, 1869, 10709, 32127, 74963, 224889, 953101, 2859303, 6671707, 20015121]

約数ペア:

[(1, 20015121), (3, 6671707), (7, 2859303), (21, 953101), (89, 224889), (267, 74963), (623, 32127), (1869, 10709)]