21000835456

素因数分解:

$2^7\times {\mathrm{164069027}}^1$

素因数の和:164069041

約数の個数: 16

約数和(自身を含む): 41837602140

約数和(自身を除く): 20836766684

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 164069027, 328138054, 656276108, 1312552216, 2625104432, 5250208864, 10500417728, 21000835456]

約数ペア:

[(1, 21000835456), (2, 10500417728), (4, 5250208864), (8, 2625104432), (16, 1312552216), (32, 656276108), (64, 328138054), (128, 164069027)]