21892760

素因数分解:

$2^3\times 5^1\times {\mathrm{101}}^1\times {\mathrm{5419}}^1$

素因数の和:5531

約数の個数: 32

約数和(自身を含む): 49755600

約数和(自身を除く): 27862840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 101, 202, 404, 505, 808, 1010, 2020, 4040, 5419, 10838, 21676, 27095, 43352, 54190, 108380, 216760, 547319, 1094638, 2189276, 2736595, 4378552, 5473190, 10946380, 21892760]

約数ペア:

[(1, 21892760), (2, 10946380), (4, 5473190), (5, 4378552), (8, 2736595), (10, 2189276), (20, 1094638), (40, 547319), (101, 216760), (202, 108380), (404, 54190), (505, 43352), (808, 27095), (1010, 21676), (2020, 10838), (4040, 5419)]