18913728

素因数分解:

$2^6\times 3^1\times {\mathrm{23}}^1\times {\mathrm{4283}}^1$

素因数の和:4321

約数の個数: 56

約数和(自身を含む): 52230528

約数和(自身を除く): 33316800

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 23, 24, 32, 46, 48, 64, 69, 92, 96, 138, 184, 192, 276, 368, 552, 736, 1104, 1472, 2208, 4283, 4416, 8566, 12849, 17132, 25698, 34264, 51396, 68528, 98509, 102792, 137056, 197018, 205584, 274112, 295527, 394036, 411168, 591054, 788072, 822336, 1182108, 1576144, 2364216, 3152288, 4728432, 6304576, 9456864, 18913728]

約数ペア:

[(1, 18913728), (2, 9456864), (3, 6304576), (4, 4728432), (6, 3152288), (8, 2364216), (12, 1576144), (16, 1182108), (23, 822336), (24, 788072), (32, 591054), (46, 411168), (48, 394036), (64, 295527), (69, 274112), (92, 205584), (96, 197018), (138, 137056), (184, 102792), (192, 98509), (276, 68528), (368, 51396), (552, 34264), (736, 25698), (1104, 17132), (1472, 12849), (2208, 8566), (4283, 4416)]