20018313

素因数分解:

$3^3\times 7^2\times {\mathrm{15131}}^1$

素因数の和:15154

約数の個数: 24

約数和(自身を含む): 34500960

約数和(自身を除く): 14482647

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 147, 189, 441, 1323, 15131, 45393, 105917, 136179, 317751, 408537, 741419, 953253, 2224257, 2859759, 6672771, 20018313]

約数ペア:

[(1, 20018313), (3, 6672771), (7, 2859759), (9, 2224257), (21, 953253), (27, 741419), (49, 408537), (63, 317751), (147, 136179), (189, 105917), (441, 45393), (1323, 15131)]