21000655242

素因数分解:

$2^1\times 3^3\times 7^1\times {\mathrm{107}}^1\times {\mathrm{519227}}^1$

素因数の和:519352

約数の個数: 64

約数和(自身を含む): 53833559040

約数和(自身を除く): 32832903798

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 27, 42, 54, 63, 107, 126, 189, 214, 321, 378, 642, 749, 963, 1498, 1926, 2247, 2889, 4494, 5778, 6741, 13482, 20223, 40446, 519227, 1038454, 1557681, 3115362, 3634589, 4673043, 7269178, 9346086, 10903767, 14019129, 21807534, 28038258, 32711301, 55557289, 65422602, 98133903, 111114578, 166671867, 196267806, 333343734, 388901023, 500015601, 777802046, 1000031202, 1166703069, 1500046803, 2333406138, 3000093606, 3500109207, 7000218414, 10500327621, 21000655242]

約数ペア:

[(1, 21000655242), (2, 10500327621), (3, 7000218414), (6, 3500109207), (7, 3000093606), (9, 2333406138), (14, 1500046803), (18, 1166703069), (21, 1000031202), (27, 777802046), (42, 500015601), (54, 388901023), (63, 333343734), (107, 196267806), (126, 166671867), (189, 111114578), (214, 98133903), (321, 65422602), (378, 55557289), (642, 32711301), (749, 28038258), (963, 21807534), (1498, 14019129), (1926, 10903767), (2247, 9346086), (2889, 7269178), (4494, 4673043), (5778, 3634589), (6741, 3115362), (13482, 1557681), (20223, 1038454), (40446, 519227)]