20631105

素因数分解:

$3^4\times 5^1\times {\mathrm{11}}^2\times {\mathrm{421}}^1$

素因数の和:460

約数の個数: 60

約数和(自身を含む): 40747476

約数和(自身を除く): 20116371

約数列:

[1, 3, 5, 9, 11, 15, 27, 33, 45, 55, 81, 99, 121, 135, 165, 297, 363, 405, 421, 495, 605, 891, 1089, 1263, 1485, 1815, 2105, 3267, 3789, 4455, 4631, 5445, 6315, 9801, 11367, 13893, 16335, 18945, 23155, 34101, 41679, 49005, 50941, 56835, 69465, 125037, 152823, 170505, 208395, 254705, 375111, 458469, 625185, 764115, 1375407, 1875555, 2292345, 4126221, 6877035, 20631105]

約数ペア:

[(1, 20631105), (3, 6877035), (5, 4126221), (9, 2292345), (11, 1875555), (15, 1375407), (27, 764115), (33, 625185), (45, 458469), (55, 375111), (81, 254705), (99, 208395), (121, 170505), (135, 152823), (165, 125037), (297, 69465), (363, 56835), (405, 50941), (421, 49005), (495, 41679), (605, 34101), (891, 23155), (1089, 18945), (1263, 16335), (1485, 13893), (1815, 11367), (2105, 9801), (3267, 6315), (3789, 5445), (4455, 4631)]