811817721

素因数分解:

$3^4\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{643}}^1$

素因数の和:788

約数の個数: 80

約数和(自身を含む): 1440035520

約数和(自身を除く): 628217799

約数列:

[1, 3, 9, 11, 13, 27, 33, 39, 81, 99, 109, 117, 143, 297, 327, 351, 429, 643, 891, 981, 1053, 1199, 1287, 1417, 1929, 2943, 3597, 3861, 4251, 5787, 7073, 8359, 8829, 10791, 11583, 12753, 15587, 17361, 21219, 25077, 32373, 38259, 46761, 52083, 63657, 70087, 75231, 91949, 97119, 114777, 140283, 190971, 210261, 225693, 275847, 420849, 572913, 630783, 677079, 770957, 827541, 911131, 1262547, 1892349, 2312871, 2482623, 2733393, 5677047, 6938613, 7447869, 8200179, 10022441, 20815839, 24600537, 30067323, 62447517, 73801611, 90201969, 270605907, 811817721]

約数ペア:

[(1, 811817721), (3, 270605907), (9, 90201969), (11, 73801611), (13, 62447517), (27, 30067323), (33, 24600537), (39, 20815839), (81, 10022441), (99, 8200179), (109, 7447869), (117, 6938613), (143, 5677047), (297, 2733393), (327, 2482623), (351, 2312871), (429, 1892349), (643, 1262547), (891, 911131), (981, 827541), (1053, 770957), (1199, 677079), (1287, 630783), (1417, 572913), (1929, 420849), (2943, 275847), (3597, 225693), (3861, 210261), (4251, 190971), (5787, 140283), (7073, 114777), (8359, 97119), (8829, 91949), (10791, 75231), (11583, 70087), (12753, 63657), (15587, 52083), (17361, 46761), (21219, 38259), (25077, 32373)]