21606256

素因数分解:

$2^4\times 7^3\times {\mathrm{31}}^1\times {\mathrm{127}}^1$

素因数の和:187

約数の個数: 80

約数和(自身を含む): 50790400

約数和(自身を除く): 29184144

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 31, 49, 56, 62, 98, 112, 124, 127, 196, 217, 248, 254, 343, 392, 434, 496, 508, 686, 784, 868, 889, 1016, 1372, 1519, 1736, 1778, 2032, 2744, 3038, 3472, 3556, 3937, 5488, 6076, 6223, 7112, 7874, 10633, 12152, 12446, 14224, 15748, 21266, 24304, 24892, 27559, 31496, 42532, 43561, 49784, 55118, 62992, 85064, 87122, 99568, 110236, 170128, 174244, 192913, 220472, 348488, 385826, 440944, 696976, 771652, 1350391, 1543304, 2700782, 3086608, 5401564, 10803128, 21606256]

約数ペア:

[(1, 21606256), (2, 10803128), (4, 5401564), (7, 3086608), (8, 2700782), (14, 1543304), (16, 1350391), (28, 771652), (31, 696976), (49, 440944), (56, 385826), (62, 348488), (98, 220472), (112, 192913), (124, 174244), (127, 170128), (196, 110236), (217, 99568), (248, 87122), (254, 85064), (343, 62992), (392, 55118), (434, 49784), (496, 43561), (508, 42532), (686, 31496), (784, 27559), (868, 24892), (889, 24304), (1016, 21266), (1372, 15748), (1519, 14224), (1736, 12446), (1778, 12152), (2032, 10633), (2744, 7874), (3038, 7112), (3472, 6223), (3556, 6076), (3937, 5488)]