21322712

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{140281}}^1$

素因数の和:140306

約数の個数: 16

約数和(自身を含む): 42084600

約数和(自身を除く): 20761888

約数列:

[1, 2, 4, 8, 19, 38, 76, 152, 140281, 280562, 561124, 1122248, 2665339, 5330678, 10661356, 21322712]

約数ペア:

[(1, 21322712), (2, 10661356), (4, 5330678), (8, 2665339), (19, 1122248), (38, 561124), (76, 280562), (152, 140281)]