28509026

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^2\times {\mathrm{163}}^1$

素因数の和:247

約数の個数: 48

約数和(自身を含む): 54718272

約数和(自身を除く): 26209246

約数列:

[1, 2, 7, 13, 14, 26, 31, 62, 91, 163, 182, 217, 326, 403, 434, 806, 961, 1141, 1922, 2119, 2282, 2821, 4238, 5053, 5642, 6727, 10106, 12493, 13454, 14833, 24986, 29666, 35371, 65689, 70742, 87451, 131378, 156643, 174902, 313286, 459823, 919646, 1096501, 2036359, 2193002, 4072718, 14254513, 28509026]

約数ペア:

[(1, 28509026), (2, 14254513), (7, 4072718), (13, 2193002), (14, 2036359), (26, 1096501), (31, 919646), (62, 459823), (91, 313286), (163, 174902), (182, 156643), (217, 131378), (326, 87451), (403, 70742), (434, 65689), (806, 35371), (961, 29666), (1141, 24986), (1922, 14833), (2119, 13454), (2282, 12493), (2821, 10106), (4238, 6727), (5053, 5642)]