2131744657

素因数分解:

$7^4\times {\mathrm{127}}^1\times {\mathrm{6991}}^1$

素因数の和:7146

約数の個数: 20

約数和(自身を含む): 2506827776

約数和(自身を除く): 375083119

約数列:

[1, 7, 49, 127, 343, 889, 2401, 6223, 6991, 43561, 48937, 304927, 342559, 887857, 2397913, 6214999, 16785391, 43504993, 304534951, 2131744657]

約数ペア:

[(1, 2131744657), (7, 304534951), (49, 43504993), (127, 16785391), (343, 6214999), (889, 2397913), (2401, 887857), (6223, 342559), (6991, 304927), (43561, 48937)]