2642843

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{641}}^1$

素因数の和:698

約数の個数: 16

約数和(自身を含む): 3287040

約数和(自身を除く): 644197

約数列:

[1, 7, 19, 31, 133, 217, 589, 641, 4123, 4487, 12179, 19871, 85253, 139097, 377549, 2642843]

約数ペア:

[(1, 2642843), (7, 377549), (19, 139097), (31, 85253), (133, 19871), (217, 12179), (589, 4487), (641, 4123)]