21942880

素因数分解:

$2^5\times 5^1\times {\mathrm{137143}}^1$

素因数の和:137158

約数の個数: 24

約数和(自身を含む): 51840432

約数和(自身を除く): 29897552

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 137143, 274286, 548572, 685715, 1097144, 1371430, 2194288, 2742860, 4388576, 5485720, 10971440, 21942880]

約数ペア:

[(1, 21942880), (2, 10971440), (4, 5485720), (5, 4388576), (8, 2742860), (10, 2194288), (16, 1371430), (20, 1097144), (32, 685715), (40, 548572), (80, 274286), (160, 137143)]