21000478548

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{607}}^1\times {\mathrm{5801}}^1$

素因数の和:6493

約数の個数: 96

約数和(自身を含む): 56893390848

約数和(自身を除く): 35892912300

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 71, 84, 142, 213, 284, 426, 497, 607, 852, 994, 1214, 1491, 1821, 1988, 2428, 2982, 3642, 4249, 5801, 5964, 7284, 8498, 11602, 12747, 16996, 17403, 23204, 25494, 34806, 40607, 43097, 50988, 69612, 81214, 86194, 121821, 129291, 162428, 172388, 243642, 258582, 301679, 411871, 487284, 517164, 603358, 823742, 905037, 1206716, 1235613, 1647484, 1810074, 2471226, 2883097, 3521207, 3620148, 4942452, 5766194, 7042414, 8649291, 10563621, 11532388, 14084828, 17298582, 21127242, 24648449, 34597164, 42254484, 49296898, 73945347, 98593796, 147890694, 250005697, 295781388, 500011394, 750017091, 1000022788, 1500034182, 1750039879, 3000068364, 3500079758, 5250119637, 7000159516, 10500239274, 21000478548]

約数ペア:

[(1, 21000478548), (2, 10500239274), (3, 7000159516), (4, 5250119637), (6, 3500079758), (7, 3000068364), (12, 1750039879), (14, 1500034182), (21, 1000022788), (28, 750017091), (42, 500011394), (71, 295781388), (84, 250005697), (142, 147890694), (213, 98593796), (284, 73945347), (426, 49296898), (497, 42254484), (607, 34597164), (852, 24648449), (994, 21127242), (1214, 17298582), (1491, 14084828), (1821, 11532388), (1988, 10563621), (2428, 8649291), (2982, 7042414), (3642, 5766194), (4249, 4942452), (5801, 3620148), (5964, 3521207), (7284, 2883097), (8498, 2471226), (11602, 1810074), (12747, 1647484), (16996, 1235613), (17403, 1206716), (23204, 905037), (25494, 823742), (34806, 603358), (40607, 517164), (43097, 487284), (50988, 411871), (69612, 301679), (81214, 258582), (86194, 243642), (121821, 172388), (129291, 162428)]