21396183

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{281}}^1\times {\mathrm{1493}}^1$

素因数の和:1794

約数の個数: 16

約数和(自身を含む): 30334176

約数和(自身を除く): 8937993

約数列:

[1, 3, 17, 51, 281, 843, 1493, 4479, 4777, 14331, 25381, 76143, 419533, 1258599, 7132061, 21396183]

約数ペア:

[(1, 21396183), (3, 7132061), (17, 1258599), (51, 419533), (281, 76143), (843, 25381), (1493, 14331), (4479, 4777)]