19399856

素因数分解:

$2^4\times 7^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{443}}^1$

素因数の和:498

約数の個数: 80

約数和(自身を含む): 47568384

約数和(自身を除く): 28168528

約数列:

[1, 2, 4, 7, 8, 14, 16, 17, 23, 28, 34, 46, 56, 68, 92, 112, 119, 136, 161, 184, 238, 272, 322, 368, 391, 443, 476, 644, 782, 886, 952, 1288, 1564, 1772, 1904, 2576, 2737, 3101, 3128, 3544, 5474, 6202, 6256, 7088, 7531, 10189, 10948, 12404, 15062, 20378, 21896, 24808, 30124, 40756, 43792, 49616, 52717, 60248, 71323, 81512, 105434, 120496, 142646, 163024, 173213, 210868, 285292, 346426, 421736, 570584, 692852, 843472, 1141168, 1212491, 1385704, 2424982, 2771408, 4849964, 9699928, 19399856]

約数ペア:

[(1, 19399856), (2, 9699928), (4, 4849964), (7, 2771408), (8, 2424982), (14, 1385704), (16, 1212491), (17, 1141168), (23, 843472), (28, 692852), (34, 570584), (46, 421736), (56, 346426), (68, 285292), (92, 210868), (112, 173213), (119, 163024), (136, 142646), (161, 120496), (184, 105434), (238, 81512), (272, 71323), (322, 60248), (368, 52717), (391, 49616), (443, 43792), (476, 40756), (644, 30124), (782, 24808), (886, 21896), (952, 20378), (1288, 15062), (1564, 12404), (1772, 10948), (1904, 10189), (2576, 7531), (2737, 7088), (3101, 6256), (3128, 6202), (3544, 5474)]