21857303

素因数分解:

${\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{83}}^1\times {\mathrm{431}}^1$

素因数の和:574

約数の個数: 16

約数和(自身を含む): 24385536

約数和(自身を除く): 2528233

約数列:

[1, 13, 47, 83, 431, 611, 1079, 3901, 5603, 20257, 35773, 50713, 263341, 465049, 1681331, 21857303]

約数ペア:

[(1, 21857303), (13, 1681331), (47, 465049), (83, 263341), (431, 50713), (611, 35773), (1079, 20257), (3901, 5603)]