217892521

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{91283}}^1$

素因数の和:91332

約数の個数: 16

約数和(自身を含む): 280424448

約数和(自身を除く): 62531927

約数列:

[1, 7, 11, 31, 77, 217, 341, 2387, 91283, 638981, 1004113, 2829773, 7028791, 19808411, 31127503, 217892521]

約数ペア:

[(1, 217892521), (7, 31127503), (11, 19808411), (31, 7028791), (77, 2829773), (217, 1004113), (341, 638981), (2387, 91283)]