21000688795

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{401}}^1\times {\mathrm{593}}^1\times {\mathrm{1039}}^1$

素因数の和:2055

約数の個数: 32

約数和(自身を含む): 26820668160

約数和(自身を除く): 5819979365

約数列:

[1, 5, 17, 85, 401, 593, 1039, 2005, 2965, 5195, 6817, 10081, 17663, 34085, 50405, 88315, 237793, 416639, 616127, 1188965, 2083195, 3080635, 4042481, 7082863, 10474159, 20212405, 35414315, 52370795, 247066927, 1235334635, 4200137759, 21000688795]

約数ペア:

[(1, 21000688795), (5, 4200137759), (17, 1235334635), (85, 247066927), (401, 52370795), (593, 35414315), (1039, 20212405), (2005, 10474159), (2965, 7082863), (5195, 4042481), (6817, 3080635), (10081, 2083195), (17663, 1188965), (34085, 616127), (50405, 416639), (88315, 237793)]