21256832

素因数分解:

$2^7\times {\mathrm{71}}^1\times {\mathrm{2339}}^1$

素因数の和:2424

約数の個数: 32

約数和(自身を含む): 42962400

約数和(自身を除く): 21705568

約数列:

[1, 2, 4, 8, 16, 32, 64, 71, 128, 142, 284, 568, 1136, 2272, 2339, 4544, 4678, 9088, 9356, 18712, 37424, 74848, 149696, 166069, 299392, 332138, 664276, 1328552, 2657104, 5314208, 10628416, 21256832]

約数ペア:

[(1, 21256832), (2, 10628416), (4, 5314208), (8, 2657104), (16, 1328552), (32, 664276), (64, 332138), (71, 299392), (128, 166069), (142, 149696), (284, 74848), (568, 37424), (1136, 18712), (2272, 9356), (2339, 9088), (4544, 4678)]