21619040

素因数分解:

$2^5\times 5^1\times {\mathrm{135119}}^1$

素因数の和:135134

約数の個数: 24

約数和(自身を含む): 51075360

約数和(自身を除く): 29456320

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 135119, 270238, 540476, 675595, 1080952, 1351190, 2161904, 2702380, 4323808, 5404760, 10809520, 21619040]

約数ペア:

[(1, 21619040), (2, 10809520), (4, 5404760), (5, 4323808), (8, 2702380), (10, 2161904), (16, 1351190), (20, 1080952), (32, 675595), (40, 540476), (80, 270238), (160, 135119)]