20166795

素因数分解:

$3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{131}}^1\times {\mathrm{311}}^1$

素因数の和:464

約数の個数: 48

約数和(自身を含む): 38548224

約数和(自身を除く): 18381429

約数列:

[1, 3, 5, 9, 11, 15, 33, 45, 55, 99, 131, 165, 311, 393, 495, 655, 933, 1179, 1441, 1555, 1965, 2799, 3421, 4323, 4665, 5895, 7205, 10263, 12969, 13995, 17105, 21615, 30789, 40741, 51315, 64845, 122223, 153945, 203705, 366669, 448151, 611115, 1344453, 1833345, 2240755, 4033359, 6722265, 20166795]

約数ペア:

[(1, 20166795), (3, 6722265), (5, 4033359), (9, 2240755), (11, 1833345), (15, 1344453), (33, 611115), (45, 448151), (55, 366669), (99, 203705), (131, 153945), (165, 122223), (311, 64845), (393, 51315), (495, 40741), (655, 30789), (933, 21615), (1179, 17105), (1441, 13995), (1555, 12969), (1965, 10263), (2799, 7205), (3421, 5895), (4323, 4665)]