20648416

素因数分解:

$2^5\times {\mathrm{47}}^1\times {\mathrm{13729}}^1$

素因数の和:13786

約数の個数: 24

約数和(自身を含む): 41519520

約数和(自身を除く): 20871104

約数列:

[1, 2, 4, 8, 16, 32, 47, 94, 188, 376, 752, 1504, 13729, 27458, 54916, 109832, 219664, 439328, 645263, 1290526, 2581052, 5162104, 10324208, 20648416]

約数ペア:

[(1, 20648416), (2, 10324208), (4, 5162104), (8, 2581052), (16, 1290526), (32, 645263), (47, 439328), (94, 219664), (188, 109832), (376, 54916), (752, 27458), (1504, 13729)]