20211444009

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{991}}^1\times {\mathrm{2909}}^1$

素因数の和:3966

約数の個数: 48

約数和(自身を含む): 31522982400

約数和(自身を除く): 11311538391

約数列:

[1, 3, 9, 19, 41, 57, 123, 171, 369, 779, 991, 2337, 2909, 2973, 7011, 8727, 8919, 18829, 26181, 40631, 55271, 56487, 119269, 121893, 165813, 169461, 357807, 365679, 497439, 771989, 1073421, 2266111, 2315967, 2882819, 6798333, 6947901, 8648457, 20394999, 25945371, 54773561, 118195579, 164320683, 354586737, 492962049, 1063760211, 2245716001, 6737148003, 20211444009]

約数ペア:

[(1, 20211444009), (3, 6737148003), (9, 2245716001), (19, 1063760211), (41, 492962049), (57, 354586737), (123, 164320683), (171, 118195579), (369, 54773561), (779, 25945371), (991, 20394999), (2337, 8648457), (2909, 6947901), (2973, 6798333), (7011, 2882819), (8727, 2315967), (8919, 2266111), (18829, 1073421), (26181, 771989), (40631, 497439), (55271, 365679), (56487, 357807), (119269, 169461), (121893, 165813)]