21692095

素因数分解:

$5^1\times {\mathrm{31}}^1\times {\mathrm{349}}^1\times {\mathrm{401}}^1$

素因数の和:786

約数の個数: 16

約数和(自身を含む): 27014400

約数和(自身を除く): 5322305

約数列:

[1, 5, 31, 155, 349, 401, 1745, 2005, 10819, 12431, 54095, 62155, 139949, 699745, 4338419, 21692095]

約数ペア:

[(1, 21692095), (5, 4338419), (31, 699745), (155, 139949), (349, 62155), (401, 54095), (1745, 12431), (2005, 10819)]