21636215

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{4003}}^1$

素因数の和:4078

約数の個数: 16

約数和(自身を含む): 27675648

約数和(自身を除く): 6039433

約数列:

[1, 5, 23, 47, 115, 235, 1081, 4003, 5405, 20015, 92069, 188141, 460345, 940705, 4327243, 21636215]

約数ペア:

[(1, 21636215), (5, 4327243), (23, 940705), (47, 460345), (115, 188141), (235, 92069), (1081, 20015), (4003, 5405)]