20156868

素因数分解:

$2^2\times 3^2\times {\mathrm{559913}}^1$

素因数の和:559923

約数の個数: 18

約数和(自身を含む): 50952174

約数和(自身を除く): 30795306

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 559913, 1119826, 1679739, 2239652, 3359478, 5039217, 6718956, 10078434, 20156868]

約数ペア:

[(1, 20156868), (2, 10078434), (3, 6718956), (4, 5039217), (6, 3359478), (9, 2239652), (12, 1679739), (18, 1119826), (36, 559913)]