31873317

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{127}}^1$

素因数の和:210

約数の個数: 64

約数和(自身を含む): 56033280

約数和(自身を除く): 24159963

約数列:

[1, 3, 7, 17, 19, 21, 37, 51, 57, 111, 119, 127, 133, 259, 323, 357, 381, 399, 629, 703, 777, 889, 969, 1887, 2109, 2159, 2261, 2413, 2667, 4403, 4699, 4921, 6477, 6783, 7239, 11951, 13209, 14097, 14763, 15113, 16891, 32893, 35853, 41021, 45339, 50673, 79883, 83657, 89281, 98679, 123063, 239649, 250971, 267843, 287147, 559181, 624967, 861441, 1517777, 1677543, 1874901, 4553331, 10624439, 31873317]

約数ペア:

[(1, 31873317), (3, 10624439), (7, 4553331), (17, 1874901), (19, 1677543), (21, 1517777), (37, 861441), (51, 624967), (57, 559181), (111, 287147), (119, 267843), (127, 250971), (133, 239649), (259, 123063), (323, 98679), (357, 89281), (381, 83657), (399, 79883), (629, 50673), (703, 45339), (777, 41021), (889, 35853), (969, 32893), (1887, 16891), (2109, 15113), (2159, 14763), (2261, 14097), (2413, 13209), (2667, 11951), (4403, 7239), (4699, 6783), (4921, 6477)]