21305320

素因数分解:

$2^3\times 5^1\times {\mathrm{532633}}^1$

素因数の和:532644

約数の個数: 16

約数和(自身を含む): 47937060

約数和(自身を除く): 26631740

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 532633, 1065266, 2130532, 2663165, 4261064, 5326330, 10652660, 21305320]

約数ペア:

[(1, 21305320), (2, 10652660), (4, 5326330), (5, 4261064), (8, 2663165), (10, 2130532), (20, 1065266), (40, 532633)]