18700797647

素因数分解:

$7^1\times {\mathrm{31}}^2\times {\mathrm{2779961}}^1$

素因数の和:2780030

約数の個数: 12

約数和(自身を含む): 22084018128

約数和(自身を除く): 3383220481

約数列:

[1, 7, 31, 217, 961, 6727, 2779961, 19459727, 86178791, 603251537, 2671542521, 18700797647]

約数ペア:

[(1, 18700797647), (7, 2671542521), (31, 603251537), (217, 86178791), (961, 19459727), (6727, 2779961)]