21585256

素因数分解:

$2^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{67}}^1\times {\mathrm{523}}^1$

素因数の和:614

約数の個数: 64

約数和(自身を含む): 51310080

約数和(自身を除く): 29724824

約数列:

[1, 2, 4, 7, 8, 11, 14, 22, 28, 44, 56, 67, 77, 88, 134, 154, 268, 308, 469, 523, 536, 616, 737, 938, 1046, 1474, 1876, 2092, 2948, 3661, 3752, 4184, 5159, 5753, 5896, 7322, 10318, 11506, 14644, 20636, 23012, 29288, 35041, 40271, 41272, 46024, 70082, 80542, 140164, 161084, 245287, 280328, 322168, 385451, 490574, 770902, 981148, 1541804, 1962296, 2698157, 3083608, 5396314, 10792628, 21585256]

約数ペア:

[(1, 21585256), (2, 10792628), (4, 5396314), (7, 3083608), (8, 2698157), (11, 1962296), (14, 1541804), (22, 981148), (28, 770902), (44, 490574), (56, 385451), (67, 322168), (77, 280328), (88, 245287), (134, 161084), (154, 140164), (268, 80542), (308, 70082), (469, 46024), (523, 41272), (536, 40271), (616, 35041), (737, 29288), (938, 23012), (1046, 20636), (1474, 14644), (1876, 11506), (2092, 10318), (2948, 7322), (3661, 5896), (3752, 5753), (4184, 5159)]