13251381

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{79}}^1$

素因数の和:146

約数の個数: 64

約数和(自身を含む): 23224320

約数和(自身を除く): 9972939

約数列:

[1, 3, 11, 13, 17, 23, 33, 39, 51, 69, 79, 143, 187, 221, 237, 253, 299, 391, 429, 561, 663, 759, 869, 897, 1027, 1173, 1343, 1817, 2431, 2607, 3081, 3289, 4029, 4301, 5083, 5451, 7293, 9867, 11297, 12903, 14773, 15249, 17459, 19987, 23621, 30889, 33891, 44319, 52377, 55913, 59961, 70863, 92667, 167739, 192049, 259831, 339779, 401557, 576147, 779493, 1019337, 1204671, 4417127, 13251381]

約数ペア:

[(1, 13251381), (3, 4417127), (11, 1204671), (13, 1019337), (17, 779493), (23, 576147), (33, 401557), (39, 339779), (51, 259831), (69, 192049), (79, 167739), (143, 92667), (187, 70863), (221, 59961), (237, 55913), (253, 52377), (299, 44319), (391, 33891), (429, 30889), (561, 23621), (663, 19987), (759, 17459), (869, 15249), (897, 14773), (1027, 12903), (1173, 11297), (1343, 9867), (1817, 7293), (2431, 5451), (2607, 5083), (3081, 4301), (3289, 4029)]