21563234

素因数分解:

$2^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{83}}^1\times {\mathrm{241}}^1$

素因数の和:351

約数の個数: 48

約数和(自身を含む): 41713056

約数和(自身を除く): 20149822

約数列:

[1, 2, 7, 11, 14, 22, 49, 77, 83, 98, 154, 166, 241, 482, 539, 581, 913, 1078, 1162, 1687, 1826, 2651, 3374, 4067, 5302, 6391, 8134, 11809, 12782, 18557, 20003, 23618, 37114, 40006, 44737, 89474, 129899, 140021, 220033, 259798, 280042, 440066, 980147, 1540231, 1960294, 3080462, 10781617, 21563234]

約数ペア:

[(1, 21563234), (2, 10781617), (7, 3080462), (11, 1960294), (14, 1540231), (22, 980147), (49, 440066), (77, 280042), (83, 259798), (98, 220033), (154, 140021), (166, 129899), (241, 89474), (482, 44737), (539, 40006), (581, 37114), (913, 23618), (1078, 20003), (1162, 18557), (1687, 12782), (1826, 11809), (2651, 8134), (3374, 6391), (4067, 5302)]