2858219

素因数分解:

$7^3\times {\mathrm{13}}^1\times {\mathrm{641}}^1$

素因数の和:675

約数の個数: 16

約数和(自身を含む): 3595200

約数和(自身を除く): 736981

約数列:

[1, 7, 13, 49, 91, 343, 637, 641, 4459, 4487, 8333, 31409, 58331, 219863, 408317, 2858219]

約数ペア:

[(1, 2858219), (7, 408317), (13, 219863), (49, 58331), (91, 31409), (343, 8333), (637, 4487), (641, 4459)]