21366128

素因数分解:

$2^4\times 7^1\times {\mathrm{190769}}^1$

素因数の和:190784

約数の個数: 20

約数和(自身を含む): 47310960

約数和(自身を除く): 25944832

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 190769, 381538, 763076, 1335383, 1526152, 2670766, 3052304, 5341532, 10683064, 21366128]

約数ペア:

[(1, 21366128), (2, 10683064), (4, 5341532), (7, 3052304), (8, 2670766), (14, 1526152), (16, 1335383), (28, 763076), (56, 381538), (112, 190769)]