20313759

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{59}}^1\times {\mathrm{157}}^1$

素因数の和:279

約数の個数: 32

約数和(自身を含む): 30032640

約数和(自身を除く): 9718881

約数列:

[1, 3, 17, 43, 51, 59, 129, 157, 177, 471, 731, 1003, 2193, 2537, 2669, 3009, 6751, 7611, 8007, 9263, 20253, 27789, 43129, 114767, 129387, 157471, 344301, 398309, 472413, 1194927, 6771253, 20313759]

約数ペア:

[(1, 20313759), (3, 6771253), (17, 1194927), (43, 472413), (51, 398309), (59, 344301), (129, 157471), (157, 129387), (177, 114767), (471, 43129), (731, 27789), (1003, 20253), (2193, 9263), (2537, 8007), (2669, 7611), (3009, 6751)]