21796929

素因数分解:

$3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{443}}^1$

素因数の和:538

約数の個数: 48

約数和(自身を含む): 39896064

約数和(自身を除く): 18099135

約数列:

[1, 3, 7, 9, 11, 21, 33, 63, 71, 77, 99, 213, 231, 443, 497, 639, 693, 781, 1329, 1491, 2343, 3101, 3987, 4473, 4873, 5467, 7029, 9303, 14619, 16401, 27909, 31453, 34111, 43857, 49203, 94359, 102333, 220171, 283077, 306999, 345983, 660513, 1037949, 1981539, 2421881, 3113847, 7265643, 21796929]

約数ペア:

[(1, 21796929), (3, 7265643), (7, 3113847), (9, 2421881), (11, 1981539), (21, 1037949), (33, 660513), (63, 345983), (71, 306999), (77, 283077), (99, 220171), (213, 102333), (231, 94359), (443, 49203), (497, 43857), (639, 34111), (693, 31453), (781, 27909), (1329, 16401), (1491, 14619), (2343, 9303), (3101, 7029), (3987, 5467), (4473, 4873)]