20407878

素因数分解:

$2^1\times 3^2\times {\mathrm{89}}^1\times {\mathrm{12739}}^1$

素因数の和:12836

約数の個数: 24

約数和(自身を含む): 44717400

約数和(自身を除く): 24309522

約数列:

[1, 2, 3, 6, 9, 18, 89, 178, 267, 534, 801, 1602, 12739, 25478, 38217, 76434, 114651, 229302, 1133771, 2267542, 3401313, 6802626, 10203939, 20407878]

約数ペア:

[(1, 20407878), (2, 10203939), (3, 6802626), (6, 3401313), (9, 2267542), (18, 1133771), (89, 229302), (178, 114651), (267, 76434), (534, 38217), (801, 25478), (1602, 12739)]