21389793

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{5849}}^1$

素因数の和:5928

約数の個数: 16

約数和(自身を含む): 30326400

約数和(自身を除く): 8936607

約数列:

[1, 3, 23, 53, 69, 159, 1219, 3657, 5849, 17547, 134527, 309997, 403581, 929991, 7129931, 21389793]

約数ペア:

[(1, 21389793), (3, 7129931), (23, 929991), (53, 403581), (69, 309997), (159, 134527), (1219, 17547), (3657, 5849)]