18938108

素因数分解:

$2^2\times 7^2\times {\mathrm{23}}^1\times {\mathrm{4201}}^1$

素因数の和:4242

約数の個数: 36

約数和(自身を含む): 40238352

約数和(自身を除く): 21300244

約数列:

[1, 2, 4, 7, 14, 23, 28, 46, 49, 92, 98, 161, 196, 322, 644, 1127, 2254, 4201, 4508, 8402, 16804, 29407, 58814, 96623, 117628, 193246, 205849, 386492, 411698, 676361, 823396, 1352722, 2705444, 4734527, 9469054, 18938108]

約数ペア:

[(1, 18938108), (2, 9469054), (4, 4734527), (7, 2705444), (14, 1352722), (23, 823396), (28, 676361), (46, 411698), (49, 386492), (92, 205849), (98, 193246), (161, 117628), (196, 96623), (322, 58814), (644, 29407), (1127, 16804), (2254, 8402), (4201, 4508)]