21152295

素因数分解:

$3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{107}}^1\times {\mathrm{191}}^1$

素因数の和:332

約数の個数: 48

約数和(自身を含む): 38817792

約数和(自身を除く): 17665497

約数列:

[1, 3, 5, 9, 15, 23, 45, 69, 107, 115, 191, 207, 321, 345, 535, 573, 955, 963, 1035, 1605, 1719, 2461, 2865, 4393, 4815, 7383, 8595, 12305, 13179, 20437, 21965, 22149, 36915, 39537, 61311, 65895, 102185, 110745, 183933, 197685, 306555, 470051, 919665, 1410153, 2350255, 4230459, 7050765, 21152295]

約数ペア:

[(1, 21152295), (3, 7050765), (5, 4230459), (9, 2350255), (15, 1410153), (23, 919665), (45, 470051), (69, 306555), (107, 197685), (115, 183933), (191, 110745), (207, 102185), (321, 65895), (345, 61311), (535, 39537), (573, 36915), (955, 22149), (963, 21965), (1035, 20437), (1605, 13179), (1719, 12305), (2461, 8595), (2865, 7383), (4393, 4815)]