18271827

素因数分解:

$3^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{73}}^1\times {\mathrm{137}}^1$

素因数の和:252

約数の個数: 48

約数和(自身を含む): 31861440

約数和(自身を除く): 13589613

約数列:

[1, 3, 7, 9, 21, 29, 63, 73, 87, 137, 203, 219, 261, 411, 511, 609, 657, 959, 1233, 1533, 1827, 2117, 2877, 3973, 4599, 6351, 8631, 10001, 11919, 14819, 19053, 27811, 30003, 35757, 44457, 70007, 83433, 90009, 133371, 210021, 250299, 290029, 630063, 870087, 2030203, 2610261, 6090609, 18271827]

約数ペア:

[(1, 18271827), (3, 6090609), (7, 2610261), (9, 2030203), (21, 870087), (29, 630063), (63, 290029), (73, 250299), (87, 210021), (137, 133371), (203, 90009), (219, 83433), (261, 70007), (411, 44457), (511, 35757), (609, 30003), (657, 27811), (959, 19053), (1233, 14819), (1533, 11919), (1827, 10001), (2117, 8631), (2877, 6351), (3973, 4599)]