18916772

素因数分解:

$2^2\times 7^1\times {\mathrm{89}}^1\times {\mathrm{7591}}^1$

素因数の和:7691

約数の個数: 24

約数和(自身を含む): 38263680

約数和(自身を除く): 19346908

約数列:

[1, 2, 4, 7, 14, 28, 89, 178, 356, 623, 1246, 2492, 7591, 15182, 30364, 53137, 106274, 212548, 675599, 1351198, 2702396, 4729193, 9458386, 18916772]

約数ペア:

[(1, 18916772), (2, 9458386), (4, 4729193), (7, 2702396), (14, 1351198), (28, 675599), (89, 212548), (178, 106274), (356, 53137), (623, 30364), (1246, 15182), (2492, 7591)]