21065248

素因数分解:

$2^5\times {\mathrm{263}}^1\times {\mathrm{2503}}^1$

素因数の和:2776

約数の個数: 24

約数和(自身を含む): 41646528

約数和(自身を除く): 20581280

約数列:

[1, 2, 4, 8, 16, 32, 263, 526, 1052, 2104, 2503, 4208, 5006, 8416, 10012, 20024, 40048, 80096, 658289, 1316578, 2633156, 5266312, 10532624, 21065248]

約数ペア:

[(1, 21065248), (2, 10532624), (4, 5266312), (8, 2633156), (16, 1316578), (32, 658289), (263, 80096), (526, 40048), (1052, 20024), (2104, 10012), (2503, 8416), (4208, 5006)]