291529287

素因数分解:

$3^7\times 7^1\times {\mathrm{137}}^1\times {\mathrm{139}}^1$

素因数の和:304

約数の個数: 64

約数和(自身を含む): 506956800

約数和(自身を除く): 215427513

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 137, 139, 189, 243, 411, 417, 567, 729, 959, 973, 1233, 1251, 1701, 2187, 2877, 2919, 3699, 3753, 5103, 8631, 8757, 11097, 11259, 15309, 19043, 25893, 26271, 33291, 33777, 57129, 77679, 78813, 99873, 101331, 133301, 171387, 233037, 236439, 299619, 303993, 399903, 514161, 699111, 709317, 1199709, 1542483, 2097333, 2127951, 3599127, 4627449, 10797381, 13882347, 32392143, 41647041, 97176429, 291529287]

約数ペア:

[(1, 291529287), (3, 97176429), (7, 41647041), (9, 32392143), (21, 13882347), (27, 10797381), (63, 4627449), (81, 3599127), (137, 2127951), (139, 2097333), (189, 1542483), (243, 1199709), (411, 709317), (417, 699111), (567, 514161), (729, 399903), (959, 303993), (973, 299619), (1233, 236439), (1251, 233037), (1701, 171387), (2187, 133301), (2877, 101331), (2919, 99873), (3699, 78813), (3753, 77679), (5103, 57129), (8631, 33777), (8757, 33291), (11097, 26271), (11259, 25893), (15309, 19043)]