21652040

素因数分解:

$2^3\times 5^1\times {\mathrm{541301}}^1$

素因数の和:541312

約数の個数: 16

約数和(自身を含む): 48717180

約数和(自身を除く): 27065140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 541301, 1082602, 2165204, 2706505, 4330408, 5413010, 10826020, 21652040]

約数ペア:

[(1, 21652040), (2, 10826020), (4, 5413010), (5, 4330408), (8, 2706505), (10, 2165204), (20, 1082602), (40, 541301)]