259540897

素因数分解:

$7^4\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{317}}^1$

素因数の和:387

約数の個数: 40

約数和(自身を含む): 342035712

約数和(自身を除く): 82494815

約数列:

[1, 7, 11, 31, 49, 77, 217, 317, 341, 343, 539, 1519, 2219, 2387, 2401, 3487, 3773, 9827, 10633, 15533, 16709, 24409, 26411, 68789, 74431, 108097, 108731, 116963, 170863, 481523, 756679, 761117, 818741, 1196041, 3370661, 5296753, 8372287, 23594627, 37077271, 259540897]

約数ペア:

[(1, 259540897), (7, 37077271), (11, 23594627), (31, 8372287), (49, 5296753), (77, 3370661), (217, 1196041), (317, 818741), (341, 761117), (343, 756679), (539, 481523), (1519, 170863), (2219, 116963), (2387, 108731), (2401, 108097), (3487, 74431), (3773, 68789), (9827, 26411), (10633, 24409), (15533, 16709)]