21916538

素因数分解:

$2^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{82393}}^1$

素因数の和:82421

約数の個数: 16

約数和(自身を含む): 39549120

約数和(自身を除く): 17632582

約数列:

[1, 2, 7, 14, 19, 38, 133, 266, 82393, 164786, 576751, 1153502, 1565467, 3130934, 10958269, 21916538]

約数ペア:

[(1, 21916538), (2, 10958269), (7, 3130934), (14, 1565467), (19, 1153502), (38, 576751), (133, 164786), (266, 82393)]