9991345

素因数分解:

$5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{3137}}^1$

素因数の和:3169

約数の個数: 24

約数和(自身を含む): 15024744

約数和(自身を除く): 5033399

約数列:

[1, 5, 7, 13, 35, 49, 65, 91, 245, 455, 637, 3137, 3185, 15685, 21959, 40781, 109795, 153713, 203905, 285467, 768565, 1427335, 1998269, 9991345]

約数ペア:

[(1, 9991345), (5, 1998269), (7, 1427335), (13, 768565), (35, 285467), (49, 203905), (65, 153713), (91, 109795), (245, 40781), (455, 21959), (637, 15685), (3137, 3185)]