20882778

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{373}}^1$

素因数の和:459

約数の個数: 64

約数和(自身を含む): 50552832

約数和(自身を除く): 29670054

約数列:

[1, 2, 3, 6, 7, 14, 21, 31, 42, 43, 62, 86, 93, 129, 186, 217, 258, 301, 373, 434, 602, 651, 746, 903, 1119, 1302, 1333, 1806, 2238, 2611, 2666, 3999, 5222, 7833, 7998, 9331, 11563, 15666, 16039, 18662, 23126, 27993, 32078, 34689, 48117, 55986, 69378, 80941, 96234, 112273, 161882, 224546, 242823, 336819, 485646, 497209, 673638, 994418, 1491627, 2983254, 3480463, 6960926, 10441389, 20882778]

約数ペア:

[(1, 20882778), (2, 10441389), (3, 6960926), (6, 3480463), (7, 2983254), (14, 1491627), (21, 994418), (31, 673638), (42, 497209), (43, 485646), (62, 336819), (86, 242823), (93, 224546), (129, 161882), (186, 112273), (217, 96234), (258, 80941), (301, 69378), (373, 55986), (434, 48117), (602, 34689), (651, 32078), (746, 27993), (903, 23126), (1119, 18662), (1302, 16039), (1333, 15666), (1806, 11563), (2238, 9331), (2611, 7998), (2666, 7833), (3999, 5222)]