21519216

素因数分解:

$2^4\times 3^3\times {\mathrm{109}}^1\times {\mathrm{457}}^1$

素因数の和:583

約数の個数: 80

約数和(自身を含む): 62471200

約数和(自身を除く): 40951984

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 27, 36, 48, 54, 72, 108, 109, 144, 216, 218, 327, 432, 436, 457, 654, 872, 914, 981, 1308, 1371, 1744, 1828, 1962, 2616, 2742, 2943, 3656, 3924, 4113, 5232, 5484, 5886, 7312, 7848, 8226, 10968, 11772, 12339, 15696, 16452, 21936, 23544, 24678, 32904, 47088, 49356, 49813, 65808, 98712, 99626, 149439, 197424, 199252, 298878, 398504, 448317, 597756, 797008, 896634, 1195512, 1344951, 1793268, 2391024, 2689902, 3586536, 5379804, 7173072, 10759608, 21519216]

約数ペア:

[(1, 21519216), (2, 10759608), (3, 7173072), (4, 5379804), (6, 3586536), (8, 2689902), (9, 2391024), (12, 1793268), (16, 1344951), (18, 1195512), (24, 896634), (27, 797008), (36, 597756), (48, 448317), (54, 398504), (72, 298878), (108, 199252), (109, 197424), (144, 149439), (216, 99626), (218, 98712), (327, 65808), (432, 49813), (436, 49356), (457, 47088), (654, 32904), (872, 24678), (914, 23544), (981, 21936), (1308, 16452), (1371, 15696), (1744, 12339), (1828, 11772), (1962, 10968), (2616, 8226), (2742, 7848), (2943, 7312), (3656, 5886), (3924, 5484), (4113, 5232)]