21405864

素因数分解:

$2^3\times 3^1\times {\mathrm{599}}^1\times {\mathrm{1489}}^1$

素因数の和:2097

約数の個数: 32

約数和(自身を含む): 53640000

約数和(自身を除く): 32234136

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 599, 1198, 1489, 1797, 2396, 2978, 3594, 4467, 4792, 5956, 7188, 8934, 11912, 14376, 17868, 35736, 891911, 1783822, 2675733, 3567644, 5351466, 7135288, 10702932, 21405864]

約数ペア:

[(1, 21405864), (2, 10702932), (3, 7135288), (4, 5351466), (6, 3567644), (8, 2675733), (12, 1783822), (24, 891911), (599, 35736), (1198, 17868), (1489, 14376), (1797, 11912), (2396, 8934), (2978, 7188), (3594, 5956), (4467, 4792)]