19894768

素因数分解:

$2^4\times {\mathrm{71}}^1\times {\mathrm{83}}^1\times {\mathrm{211}}^1$

素因数の和:373

約数の個数: 40

約数和(自身を含む): 39747456

約数和(自身を除く): 19852688

約数列:

[1, 2, 4, 8, 16, 71, 83, 142, 166, 211, 284, 332, 422, 568, 664, 844, 1136, 1328, 1688, 3376, 5893, 11786, 14981, 17513, 23572, 29962, 35026, 47144, 59924, 70052, 94288, 119848, 140104, 239696, 280208, 1243423, 2486846, 4973692, 9947384, 19894768]

約数ペア:

[(1, 19894768), (2, 9947384), (4, 4973692), (8, 2486846), (16, 1243423), (71, 280208), (83, 239696), (142, 140104), (166, 119848), (211, 94288), (284, 70052), (332, 59924), (422, 47144), (568, 35026), (664, 29962), (844, 23572), (1136, 17513), (1328, 14981), (1688, 11786), (3376, 5893)]