18868736

素因数分解:

$2^9\times {\mathrm{137}}^1\times {\mathrm{269}}^1$

素因数の和:424

約数の個数: 40

約数和(自身を含む): 38116980

約数和(自身を除く): 19248244

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 137, 256, 269, 274, 512, 538, 548, 1076, 1096, 2152, 2192, 4304, 4384, 8608, 8768, 17216, 17536, 34432, 35072, 36853, 68864, 70144, 73706, 137728, 147412, 294824, 589648, 1179296, 2358592, 4717184, 9434368, 18868736]

約数ペア:

[(1, 18868736), (2, 9434368), (4, 4717184), (8, 2358592), (16, 1179296), (32, 589648), (64, 294824), (128, 147412), (137, 137728), (256, 73706), (269, 70144), (274, 68864), (512, 36853), (538, 35072), (548, 34432), (1076, 17536), (1096, 17216), (2152, 8768), (2192, 8608), (4304, 4384)]