19982259

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{383}}^1$

素因数の和:448

約数の個数: 48

約数和(自身を含む): 34504704

約数和(自身を除く): 14522445

約数列:

[1, 3, 9, 11, 17, 31, 33, 51, 93, 99, 153, 187, 279, 341, 383, 527, 561, 1023, 1149, 1581, 1683, 3069, 3447, 4213, 4743, 5797, 6511, 11873, 12639, 17391, 19533, 35619, 37917, 52173, 58599, 71621, 106857, 130603, 201841, 214863, 391809, 605523, 644589, 1175427, 1816569, 2220251, 6660753, 19982259]

約数ペア:

[(1, 19982259), (3, 6660753), (9, 2220251), (11, 1816569), (17, 1175427), (31, 644589), (33, 605523), (51, 391809), (93, 214863), (99, 201841), (153, 130603), (187, 106857), (279, 71621), (341, 58599), (383, 52173), (527, 37917), (561, 35619), (1023, 19533), (1149, 17391), (1581, 12639), (1683, 11873), (3069, 6511), (3447, 5797), (4213, 4743)]