21520454

素因数分解:

$2^1\times {\mathrm{47}}^1\times {\mathrm{179}}^1\times {\mathrm{1279}}^1$

素因数の和:1507

約数の個数: 16

約数和(自身を含む): 33177600

約数和(自身を除く): 11657146

約数列:

[1, 2, 47, 94, 179, 358, 1279, 2558, 8413, 16826, 60113, 120226, 228941, 457882, 10760227, 21520454]

約数ペア:

[(1, 21520454), (2, 10760227), (47, 457882), (94, 228941), (179, 120226), (358, 60113), (1279, 16826), (2558, 8413)]