28977984009

素因数分解:

$3^7\times {\mathrm{13}}^3\times {\mathrm{37}}^1\times {\mathrm{163}}^1$

素因数の和:260

約数の個数: 128

約数和(自身を含む): 48649484800

約数和(自身を除く): 19671500791

約数列:

[1, 3, 9, 13, 27, 37, 39, 81, 111, 117, 163, 169, 243, 333, 351, 481, 489, 507, 729, 999, 1053, 1443, 1467, 1521, 2119, 2187, 2197, 2997, 3159, 4329, 4401, 4563, 6031, 6253, 6357, 6591, 8991, 9477, 12987, 13203, 13689, 18093, 18759, 19071, 19773, 26973, 27547, 28431, 38961, 39609, 41067, 54279, 56277, 57213, 59319, 78403, 80919, 81289, 82641, 116883, 118827, 123201, 162837, 168831, 171639, 177957, 235209, 243867, 247923, 350649, 356481, 358111, 369603, 488511, 506493, 514917, 533871, 705627, 731601, 743769, 1019239, 1051947, 1074333, 1465533, 1519479, 1544751, 1601613, 2116881, 2194803, 2231307, 3057717, 3222999, 4396599, 4558437, 4634253, 4804839, 6350643, 6584409, 6693921, 9173151, 9668997, 13189797, 13250107, 13675311, 19051929, 19753227, 20081763, 27519453, 29006991, 39750321, 57155787, 59259681, 60245289, 82558359, 87020973, 119250963, 171467361, 177779043, 247675077, 261062919, 357752889, 743025231, 783188757, 1073258667, 2229075693, 3219776001, 9659328003, 28977984009]

約数ペア:

[(1, 28977984009), (3, 9659328003), (9, 3219776001), (13, 2229075693), (27, 1073258667), (37, 783188757), (39, 743025231), (81, 357752889), (111, 261062919), (117, 247675077), (163, 177779043), (169, 171467361), (243, 119250963), (333, 87020973), (351, 82558359), (481, 60245289), (489, 59259681), (507, 57155787), (729, 39750321), (999, 29006991), (1053, 27519453), (1443, 20081763), (1467, 19753227), (1521, 19051929), (2119, 13675311), (2187, 13250107), (2197, 13189797), (2997, 9668997), (3159, 9173151), (4329, 6693921), (4401, 6584409), (4563, 6350643), (6031, 4804839), (6253, 4634253), (6357, 4558437), (6591, 4396599), (8991, 3222999), (9477, 3057717), (12987, 2231307), (13203, 2194803), (13689, 2116881), (18093, 1601613), (18759, 1544751), (19071, 1519479), (19773, 1465533), (26973, 1074333), (27547, 1051947), (28431, 1019239), (38961, 743769), (39609, 731601), (41067, 705627), (54279, 533871), (56277, 514917), (57213, 506493), (59319, 488511), (78403, 369603), (80919, 358111), (81289, 356481), (82641, 350649), (116883, 247923), (118827, 243867), (123201, 235209), (162837, 177957), (168831, 171639)]