21610090

素因数分解:

$2^1\times 5^1\times {\mathrm{89}}^1\times {\mathrm{24281}}^1$

素因数の和:24377

約数の個数: 16

約数和(自身を含む): 39336840

約数和(自身を除く): 17726750

約数列:

[1, 2, 5, 10, 89, 178, 445, 890, 24281, 48562, 121405, 242810, 2161009, 4322018, 10805045, 21610090]

約数ペア:

[(1, 21610090), (2, 10805045), (5, 4322018), (10, 2161009), (89, 242810), (178, 121405), (445, 48562), (890, 24281)]