991495449

素因数分解:

$3^2\times 7^2\times {\mathrm{19}}^1\times {\mathrm{241}}^1\times {\mathrm{491}}^1$

素因数の和:771

約数の個数: 72

約数和(自身を含む): 1764528480

約数和(自身を除く): 773033031

約数列:

[1, 3, 7, 9, 19, 21, 49, 57, 63, 133, 147, 171, 241, 399, 441, 491, 723, 931, 1197, 1473, 1687, 2169, 2793, 3437, 4419, 4579, 5061, 8379, 9329, 10311, 11809, 13737, 15183, 24059, 27987, 30933, 32053, 35427, 41211, 65303, 72177, 83961, 96159, 106281, 118331, 195909, 216531, 224371, 288477, 354993, 457121, 587727, 673113, 828317, 1064979, 1371363, 2019339, 2248289, 2484951, 4114089, 5798219, 6744867, 7454853, 15738023, 17394657, 20234601, 47214069, 52183971, 110166161, 141642207, 330498483, 991495449]

約数ペア:

[(1, 991495449), (3, 330498483), (7, 141642207), (9, 110166161), (19, 52183971), (21, 47214069), (49, 20234601), (57, 17394657), (63, 15738023), (133, 7454853), (147, 6744867), (171, 5798219), (241, 4114089), (399, 2484951), (441, 2248289), (491, 2019339), (723, 1371363), (931, 1064979), (1197, 828317), (1473, 673113), (1687, 587727), (2169, 457121), (2793, 354993), (3437, 288477), (4419, 224371), (4579, 216531), (5061, 195909), (8379, 118331), (9329, 106281), (10311, 96159), (11809, 83961), (13737, 72177), (15183, 65303), (24059, 41211), (27987, 35427), (30933, 32053)]