21725984

素因数分解:

$2^5\times 7^1\times {\mathrm{23}}^1\times {\mathrm{4217}}^1$

素因数の和:4257

約数の個数: 48

約数和(自身を含む): 51020928

約数和(自身を除く): 29294944

約数列:

[1, 2, 4, 7, 8, 14, 16, 23, 28, 32, 46, 56, 92, 112, 161, 184, 224, 322, 368, 644, 736, 1288, 2576, 4217, 5152, 8434, 16868, 29519, 33736, 59038, 67472, 96991, 118076, 134944, 193982, 236152, 387964, 472304, 678937, 775928, 944608, 1357874, 1551856, 2715748, 3103712, 5431496, 10862992, 21725984]

約数ペア:

[(1, 21725984), (2, 10862992), (4, 5431496), (7, 3103712), (8, 2715748), (14, 1551856), (16, 1357874), (23, 944608), (28, 775928), (32, 678937), (46, 472304), (56, 387964), (92, 236152), (112, 193982), (161, 134944), (184, 118076), (224, 96991), (322, 67472), (368, 59038), (644, 33736), (736, 29519), (1288, 16868), (2576, 8434), (4217, 5152)]