31771971

素因数分解:

$3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^2\times {\mathrm{127}}^1$

素因数の和:189

約数の個数: 72

約数和(自身を含む): 60862464

約数和(自身を除く): 29090493

約数列:

[1, 3, 7, 9, 11, 19, 21, 33, 57, 63, 77, 99, 127, 133, 171, 209, 231, 361, 381, 399, 627, 693, 889, 1083, 1143, 1197, 1397, 1463, 1881, 2413, 2527, 2667, 3249, 3971, 4191, 4389, 7239, 7581, 8001, 9779, 11913, 12573, 13167, 16891, 21717, 22743, 26543, 27797, 29337, 35739, 45847, 50673, 79629, 83391, 88011, 137541, 152019, 185801, 238887, 250173, 320929, 412623, 504317, 557403, 962787, 1512951, 1672209, 2888361, 3530219, 4538853, 10590657, 31771971]

約数ペア:

[(1, 31771971), (3, 10590657), (7, 4538853), (9, 3530219), (11, 2888361), (19, 1672209), (21, 1512951), (33, 962787), (57, 557403), (63, 504317), (77, 412623), (99, 320929), (127, 250173), (133, 238887), (171, 185801), (209, 152019), (231, 137541), (361, 88011), (381, 83391), (399, 79629), (627, 50673), (693, 45847), (889, 35739), (1083, 29337), (1143, 27797), (1197, 26543), (1397, 22743), (1463, 21717), (1881, 16891), (2413, 13167), (2527, 12573), (2667, 11913), (3249, 9779), (3971, 8001), (4191, 7581), (4389, 7239)]