21203456

素因数分解:

$2^9\times {\mathrm{41413}}^1$

素因数の和:41431

約数の個数: 20

約数和(自身を含む): 42366522

約数和(自身を除く): 21163066

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 256, 512, 41413, 82826, 165652, 331304, 662608, 1325216, 2650432, 5300864, 10601728, 21203456]

約数ペア:

[(1, 21203456), (2, 10601728), (4, 5300864), (8, 2650432), (16, 1325216), (32, 662608), (64, 331304), (128, 165652), (256, 82826), (512, 41413)]