19939208

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{233}}^1\times {\mathrm{563}}^1$

素因数の和:821

約数の個数: 32

約数和(自身を含む): 39592800

約数和(自身を除く): 19653592

約数列:

[1, 2, 4, 8, 19, 38, 76, 152, 233, 466, 563, 932, 1126, 1864, 2252, 4427, 4504, 8854, 10697, 17708, 21394, 35416, 42788, 85576, 131179, 262358, 524716, 1049432, 2492401, 4984802, 9969604, 19939208]

約数ペア:

[(1, 19939208), (2, 9969604), (4, 4984802), (8, 2492401), (19, 1049432), (38, 524716), (76, 262358), (152, 131179), (233, 85576), (466, 42788), (563, 35416), (932, 21394), (1126, 17708), (1864, 10697), (2252, 8854), (4427, 4504)]