1991626

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{353}}^1$

素因数の和:406

約数の個数: 32

約数和(自身を含む): 3806208

約数和(自身を除く): 1814582

約数列:

[1, 2, 7, 13, 14, 26, 31, 62, 91, 182, 217, 353, 403, 434, 706, 806, 2471, 2821, 4589, 4942, 5642, 9178, 10943, 21886, 32123, 64246, 76601, 142259, 153202, 284518, 995813, 1991626]

約数ペア:

[(1, 1991626), (2, 995813), (7, 284518), (13, 153202), (14, 142259), (26, 76601), (31, 64246), (62, 32123), (91, 21886), (182, 10943), (217, 9178), (353, 5642), (403, 4942), (434, 4589), (706, 2821), (806, 2471)]