21588520

素因数分解:

$2^3\times 5^1\times {\mathrm{539713}}^1$

素因数の和:539724

約数の個数: 16

約数和(自身を含む): 48574260

約数和(自身を除く): 26985740

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 539713, 1079426, 2158852, 2698565, 4317704, 5397130, 10794260, 21588520]

約数ペア:

[(1, 21588520), (2, 10794260), (4, 5397130), (5, 4317704), (8, 2698565), (10, 2158852), (20, 1079426), (40, 539713)]