81404631

素因数分解:

$3^2\times 7^2\times {\mathrm{11}}^1\times {\mathrm{97}}^1\times {\mathrm{173}}^1$

素因数の和:301

約数の個数: 72

約数和(自身を含む): 151626384

約数和(自身を除く): 70221753

約数列:

[1, 3, 7, 9, 11, 21, 33, 49, 63, 77, 97, 99, 147, 173, 231, 291, 441, 519, 539, 679, 693, 873, 1067, 1211, 1557, 1617, 1903, 2037, 3201, 3633, 4753, 4851, 5709, 6111, 7469, 8477, 9603, 10899, 13321, 14259, 16781, 17127, 22407, 25431, 39963, 42777, 50343, 52283, 67221, 76293, 93247, 117467, 119889, 151029, 156849, 184591, 279741, 352401, 470547, 553773, 822269, 839223, 1057203, 1292137, 1661319, 2466807, 3876411, 7400421, 9044959, 11629233, 27134877, 81404631]

約数ペア:

[(1, 81404631), (3, 27134877), (7, 11629233), (9, 9044959), (11, 7400421), (21, 3876411), (33, 2466807), (49, 1661319), (63, 1292137), (77, 1057203), (97, 839223), (99, 822269), (147, 553773), (173, 470547), (231, 352401), (291, 279741), (441, 184591), (519, 156849), (539, 151029), (679, 119889), (693, 117467), (873, 93247), (1067, 76293), (1211, 67221), (1557, 52283), (1617, 50343), (1903, 42777), (2037, 39963), (3201, 25431), (3633, 22407), (4753, 17127), (4851, 16781), (5709, 14259), (6111, 13321), (7469, 10899), (8477, 9603)]