19393011

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{89}}^1$

素因数の和:208

約数の個数: 48

約数和(自身を含む): 32348160

約数和(自身を除く): 12955149

約数列:

[1, 3, 9, 11, 31, 33, 71, 89, 93, 99, 213, 267, 279, 341, 639, 781, 801, 979, 1023, 2201, 2343, 2759, 2937, 3069, 6319, 6603, 7029, 8277, 8811, 18957, 19809, 24211, 24831, 30349, 56871, 69509, 72633, 91047, 195889, 208527, 217899, 273141, 587667, 625581, 1763001, 2154779, 6464337, 19393011]

約数ペア:

[(1, 19393011), (3, 6464337), (9, 2154779), (11, 1763001), (31, 625581), (33, 587667), (71, 273141), (89, 217899), (93, 208527), (99, 195889), (213, 91047), (267, 72633), (279, 69509), (341, 56871), (639, 30349), (781, 24831), (801, 24211), (979, 19809), (1023, 18957), (2201, 8811), (2343, 8277), (2759, 7029), (2937, 6603), (3069, 6319)]