51811893

素因数分解:

$3^4\times 7^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{137}}^1$

素因数の和:208

約数の個数: 80

約数和(自身を含む): 96180480

約数和(自身を除く): 44368587

約数列:

[1, 3, 7, 9, 21, 23, 27, 29, 63, 69, 81, 87, 137, 161, 189, 203, 207, 261, 411, 483, 567, 609, 621, 667, 783, 959, 1233, 1449, 1827, 1863, 2001, 2349, 2877, 3151, 3699, 3973, 4347, 4669, 5481, 6003, 8631, 9453, 11097, 11919, 13041, 14007, 16443, 18009, 22057, 25893, 27811, 28359, 35757, 42021, 54027, 66171, 77679, 83433, 85077, 91379, 107271, 126063, 198513, 250299, 255231, 274137, 321813, 378189, 595539, 639653, 750897, 822411, 1786617, 1918959, 2252691, 2467233, 5756877, 7401699, 17270631, 51811893]

約数ペア:

[(1, 51811893), (3, 17270631), (7, 7401699), (9, 5756877), (21, 2467233), (23, 2252691), (27, 1918959), (29, 1786617), (63, 822411), (69, 750897), (81, 639653), (87, 595539), (137, 378189), (161, 321813), (189, 274137), (203, 255231), (207, 250299), (261, 198513), (411, 126063), (483, 107271), (567, 91379), (609, 85077), (621, 83433), (667, 77679), (783, 66171), (959, 54027), (1233, 42021), (1449, 35757), (1827, 28359), (1863, 27811), (2001, 25893), (2349, 22057), (2877, 18009), (3151, 16443), (3699, 14007), (3973, 13041), (4347, 11919), (4669, 11097), (5481, 9453), (6003, 8631)]