21603040

素因数分解:

$2^5\times 5^1\times {\mathrm{135019}}^1$

素因数の和:135034

約数の個数: 24

約数和(自身を含む): 51037560

約数和(自身を除く): 29434520

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 135019, 270038, 540076, 675095, 1080152, 1350190, 2160304, 2700380, 4320608, 5400760, 10801520, 21603040]

約数ペア:

[(1, 21603040), (2, 10801520), (4, 5400760), (5, 4320608), (8, 2700380), (10, 2160304), (16, 1350190), (20, 1080152), (32, 675095), (40, 540076), (80, 270038), (160, 135019)]