12720267

素因数分解:

$3^3\times 7^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{107}}^1$

素因数の和:177

約数の個数: 64

約数和(自身を含む): 23639040

約数和(自身を除く): 10918773

約数列:

[1, 3, 7, 9, 17, 21, 27, 37, 51, 63, 107, 111, 119, 153, 189, 259, 321, 333, 357, 459, 629, 749, 777, 963, 999, 1071, 1819, 1887, 2247, 2331, 2889, 3213, 3959, 4403, 5457, 5661, 6741, 6993, 11877, 12733, 13209, 16371, 16983, 20223, 27713, 35631, 38199, 39627, 49113, 67303, 83139, 106893, 114597, 118881, 201909, 249417, 343791, 471121, 605727, 748251, 1413363, 1817181, 4240089, 12720267]

約数ペア:

[(1, 12720267), (3, 4240089), (7, 1817181), (9, 1413363), (17, 748251), (21, 605727), (27, 471121), (37, 343791), (51, 249417), (63, 201909), (107, 118881), (111, 114597), (119, 106893), (153, 83139), (189, 67303), (259, 49113), (321, 39627), (333, 38199), (357, 35631), (459, 27713), (629, 20223), (749, 16983), (777, 16371), (963, 13209), (999, 12733), (1071, 11877), (1819, 6993), (1887, 6741), (2247, 5661), (2331, 5457), (2889, 4403), (3213, 3959)]