81268019

素因数分解:

$7^3\times {\mathrm{31}}^1\times {\mathrm{7643}}^1$

素因数の和:7695

約数の個数: 16

約数和(自身を含む): 97843200

約数和(自身を除く): 16575181

約数列:

[1, 7, 31, 49, 217, 343, 1519, 7643, 10633, 53501, 236933, 374507, 1658531, 2621549, 11609717, 81268019]

約数ペア:

[(1, 81268019), (7, 11609717), (31, 2621549), (49, 1658531), (217, 374507), (343, 236933), (1519, 53501), (7643, 10633)]