21361016

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{140533}}^1$

素因数の和:140558

約数の個数: 16

約数和(自身を含む): 42160200

約数和(自身を除く): 20799184

約数列:

[1, 2, 4, 8, 19, 38, 76, 152, 140533, 281066, 562132, 1124264, 2670127, 5340254, 10680508, 21361016]

約数ペア:

[(1, 21361016), (2, 10680508), (4, 5340254), (8, 2670127), (19, 1124264), (38, 562132), (76, 281066), (152, 140533)]