813993

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{251}}^1$

素因数の和:324

約数の個数: 16

約数和(自身を含む): 1161216

約数和(自身を除く): 347223

約数列:

[1, 3, 23, 47, 69, 141, 251, 753, 1081, 3243, 5773, 11797, 17319, 35391, 271331, 813993]

約数ペア:

[(1, 813993), (3, 271331), (23, 35391), (47, 17319), (69, 11797), (141, 5773), (251, 3243), (753, 1081)]