399188426

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{70753}}^1$

素因数の和:70806

約数の個数: 32

約数和(自身を含む): 760747008

約数和(自身を除く): 361558582

約数列:

[1, 2, 7, 13, 14, 26, 31, 62, 91, 182, 217, 403, 434, 806, 2821, 5642, 70753, 141506, 495271, 919789, 990542, 1839578, 2193343, 4386686, 6438523, 12877046, 15353401, 28513459, 30706802, 57026918, 199594213, 399188426]

約数ペア:

[(1, 399188426), (2, 199594213), (7, 57026918), (13, 30706802), (14, 28513459), (26, 15353401), (31, 12877046), (62, 6438523), (91, 4386686), (182, 2193343), (217, 1839578), (403, 990542), (434, 919789), (806, 495271), (2821, 141506), (5642, 70753)]