18919424

素因数分解:

$2^{12}\times {\mathrm{31}}^1\times {\mathrm{149}}^1$

素因数の和:204

約数の個数: 52

約数和(自身を含む): 39316800

約数和(自身を除く): 20397376

約数列:

[1, 2, 4, 8, 16, 31, 32, 62, 64, 124, 128, 149, 248, 256, 298, 496, 512, 596, 992, 1024, 1192, 1984, 2048, 2384, 3968, 4096, 4619, 4768, 7936, 9238, 9536, 15872, 18476, 19072, 31744, 36952, 38144, 63488, 73904, 76288, 126976, 147808, 152576, 295616, 305152, 591232, 610304, 1182464, 2364928, 4729856, 9459712, 18919424]

約数ペア:

[(1, 18919424), (2, 9459712), (4, 4729856), (8, 2364928), (16, 1182464), (31, 610304), (32, 591232), (62, 305152), (64, 295616), (124, 152576), (128, 147808), (149, 126976), (248, 76288), (256, 73904), (298, 63488), (496, 38144), (512, 36952), (596, 31744), (992, 19072), (1024, 18476), (1192, 15872), (1984, 9536), (2048, 9238), (2384, 7936), (3968, 4768), (4096, 4619)]