21155648

素因数分解:

$2^6\times {\mathrm{330557}}^1$

素因数の和:330569

約数の個数: 14

約数和(自身を含む): 41980866

約数和(自身を除く): 20825218

約数列:

[1, 2, 4, 8, 16, 32, 64, 330557, 661114, 1322228, 2644456, 5288912, 10577824, 21155648]

約数ペア:

[(1, 21155648), (2, 10577824), (4, 5288912), (8, 2644456), (16, 1322228), (32, 661114), (64, 330557)]