21000337428

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{97}}^1\times {\mathrm{829}}^1\times {\mathrm{3109}}^1$

素因数の和:4049

約数の個数: 96

約数和(自身を含む): 56664697600

約数和(自身を除く): 35664360172

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84, 97, 194, 291, 388, 582, 679, 829, 1164, 1358, 1658, 2037, 2487, 2716, 3109, 3316, 4074, 4974, 5803, 6218, 8148, 9327, 9948, 11606, 12436, 17409, 18654, 21763, 23212, 34818, 37308, 43526, 65289, 69636, 80413, 87052, 130578, 160826, 241239, 261156, 301573, 321652, 482478, 562891, 603146, 904719, 964956, 1125782, 1206292, 1688673, 1809438, 2111011, 2251564, 2577361, 3377346, 3618876, 4222022, 5154722, 6333033, 6754692, 7732083, 8444044, 10309444, 12666066, 15464166, 18041527, 25332132, 30928332, 36083054, 54124581, 72166108, 108249162, 216498324, 250004017, 500008034, 750012051, 1000016068, 1500024102, 1750028119, 3000048204, 3500056238, 5250084357, 7000112476, 10500168714, 21000337428]

約数ペア:

[(1, 21000337428), (2, 10500168714), (3, 7000112476), (4, 5250084357), (6, 3500056238), (7, 3000048204), (12, 1750028119), (14, 1500024102), (21, 1000016068), (28, 750012051), (42, 500008034), (84, 250004017), (97, 216498324), (194, 108249162), (291, 72166108), (388, 54124581), (582, 36083054), (679, 30928332), (829, 25332132), (1164, 18041527), (1358, 15464166), (1658, 12666066), (2037, 10309444), (2487, 8444044), (2716, 7732083), (3109, 6754692), (3316, 6333033), (4074, 5154722), (4974, 4222022), (5803, 3618876), (6218, 3377346), (8148, 2577361), (9327, 2251564), (9948, 2111011), (11606, 1809438), (12436, 1688673), (17409, 1206292), (18654, 1125782), (21763, 964956), (23212, 904719), (34818, 603146), (37308, 562891), (43526, 482478), (65289, 321652), (69636, 301573), (80413, 261156), (87052, 241239), (130578, 160826)]