21630848

素因数分解:

$2^7\times {\mathrm{168991}}^1$

素因数の和:169005

約数の個数: 16

約数和(自身を含む): 43092960

約数和(自身を除く): 21462112

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 168991, 337982, 675964, 1351928, 2703856, 5407712, 10815424, 21630848]

約数ペア:

[(1, 21630848), (2, 10815424), (4, 5407712), (8, 2703856), (16, 1351928), (32, 675964), (64, 337982), (128, 168991)]