21084740

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{36353}}^1$

素因数の和:36391

約数の個数: 24

約数和(自身を含む): 45806040

約数和(自身を除く): 24721300

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 116, 145, 290, 580, 36353, 72706, 145412, 181765, 363530, 727060, 1054237, 2108474, 4216948, 5271185, 10542370, 21084740]

約数ペア:

[(1, 21084740), (2, 10542370), (4, 5271185), (5, 4216948), (10, 2108474), (20, 1054237), (29, 727060), (58, 363530), (116, 181765), (145, 145412), (290, 72706), (580, 36353)]