221246319

素因数分解:

$3^1\times 7^3\times {\mathrm{127}}^1\times {\mathrm{1693}}^1$

素因数の和:1844

約数の個数: 32

約数和(自身を含む): 346931200

約数和(自身を除く): 125684881

約数列:

[1, 3, 7, 21, 49, 127, 147, 343, 381, 889, 1029, 1693, 2667, 5079, 6223, 11851, 18669, 35553, 43561, 82957, 130683, 215011, 248871, 580699, 645033, 1505077, 1742097, 4515231, 10535539, 31606617, 73748773, 221246319]

約数ペア:

[(1, 221246319), (3, 73748773), (7, 31606617), (21, 10535539), (49, 4515231), (127, 1742097), (147, 1505077), (343, 645033), (381, 580699), (889, 248871), (1029, 215011), (1693, 130683), (2667, 82957), (5079, 43561), (6223, 35553), (11851, 18669)]