20527155

素因数分解:

$3^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{601}}^1$

素因数の和:649

約数の個数: 64

約数和(自身を含む): 41610240

約数和(自身を除く): 21083085

約数列:

[1, 3, 5, 9, 11, 15, 23, 27, 33, 45, 55, 69, 99, 115, 135, 165, 207, 253, 297, 345, 495, 601, 621, 759, 1035, 1265, 1485, 1803, 2277, 3005, 3105, 3795, 5409, 6611, 6831, 9015, 11385, 13823, 16227, 19833, 27045, 33055, 34155, 41469, 59499, 69115, 81135, 99165, 124407, 152053, 178497, 207345, 297495, 373221, 456159, 622035, 760265, 892485, 1368477, 1866105, 2280795, 4105431, 6842385, 20527155]

約数ペア:

[(1, 20527155), (3, 6842385), (5, 4105431), (9, 2280795), (11, 1866105), (15, 1368477), (23, 892485), (27, 760265), (33, 622035), (45, 456159), (55, 373221), (69, 297495), (99, 207345), (115, 178497), (135, 152053), (165, 124407), (207, 99165), (253, 81135), (297, 69115), (345, 59499), (495, 41469), (601, 34155), (621, 33055), (759, 27045), (1035, 19833), (1265, 16227), (1485, 13823), (1803, 11385), (2277, 9015), (3005, 6831), (3105, 6611), (3795, 5409)]