21112760

素因数分解:

$2^3\times 5^1\times {\mathrm{527819}}^1$

素因数の和:527830

約数の個数: 16

約数和(自身を含む): 47503800

約数和(自身を除く): 26391040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 527819, 1055638, 2111276, 2639095, 4222552, 5278190, 10556380, 21112760]

約数ペア:

[(1, 21112760), (2, 10556380), (4, 5278190), (5, 4222552), (8, 2639095), (10, 2111276), (20, 1055638), (40, 527819)]