20528055

素因数分解:

$3^2\times 5^1\times {\mathrm{373}}^1\times {\mathrm{1223}}^1$

素因数の和:1607

約数の個数: 24

約数和(自身を含む): 35706528

約数和(自身を除く): 15178473

約数列:

[1, 3, 5, 9, 15, 45, 373, 1119, 1223, 1865, 3357, 3669, 5595, 6115, 11007, 16785, 18345, 55035, 456179, 1368537, 2280895, 4105611, 6842685, 20528055]

約数ペア:

[(1, 20528055), (3, 6842685), (5, 4105611), (9, 2280895), (15, 1368537), (45, 456179), (373, 55035), (1119, 18345), (1223, 16785), (1865, 11007), (3357, 6115), (3669, 5595)]