251171753

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{163}}^1\times {\mathrm{563}}^1$

素因数の和:773

約数の個数: 32

約数和(自身を含む): 319666176

約数和(自身を除く): 68494423

約数列:

[1, 7, 17, 23, 119, 161, 163, 391, 563, 1141, 2737, 2771, 3749, 3941, 9571, 12949, 19397, 26243, 63733, 66997, 90643, 91769, 220133, 446131, 642383, 1540931, 1560073, 2110687, 10920511, 14774809, 35881679, 251171753]

約数ペア:

[(1, 251171753), (7, 35881679), (17, 14774809), (23, 10920511), (119, 2110687), (161, 1560073), (163, 1540931), (391, 642383), (563, 446131), (1141, 220133), (2737, 91769), (2771, 90643), (3749, 66997), (3941, 63733), (9571, 26243), (12949, 19397)]