20555235

素因数分解:

$3^3\times 5^1\times {\mathrm{107}}^1\times {\mathrm{1423}}^1$

素因数の和:1544

約数の個数: 32

約数和(自身を含む): 36910080

約数和(自身を除く): 16354845

約数列:

[1, 3, 5, 9, 15, 27, 45, 107, 135, 321, 535, 963, 1423, 1605, 2889, 4269, 4815, 7115, 12807, 14445, 21345, 38421, 64035, 152261, 192105, 456783, 761305, 1370349, 2283915, 4111047, 6851745, 20555235]

約数ペア:

[(1, 20555235), (3, 6851745), (5, 4111047), (9, 2283915), (15, 1370349), (27, 761305), (45, 456783), (107, 192105), (135, 152261), (321, 64035), (535, 38421), (963, 21345), (1423, 14445), (1605, 12807), (2889, 7115), (4269, 4815)]