20904345

素因数分解:

$3^3\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{2011}}^1$

素因数の和:2043

約数の個数: 64

約数和(自身を含む): 46356480

約数和(自身を除く): 25452135

約数列:

[1, 3, 5, 7, 9, 11, 15, 21, 27, 33, 35, 45, 55, 63, 77, 99, 105, 135, 165, 189, 231, 297, 315, 385, 495, 693, 945, 1155, 1485, 2011, 2079, 3465, 6033, 10055, 10395, 14077, 18099, 22121, 30165, 42231, 54297, 66363, 70385, 90495, 110605, 126693, 154847, 199089, 211155, 271485, 331815, 380079, 464541, 597267, 633465, 774235, 995445, 1393623, 1900395, 2322705, 2986335, 4180869, 6968115, 20904345]

約数ペア:

[(1, 20904345), (3, 6968115), (5, 4180869), (7, 2986335), (9, 2322705), (11, 1900395), (15, 1393623), (21, 995445), (27, 774235), (33, 633465), (35, 597267), (45, 464541), (55, 380079), (63, 331815), (77, 271485), (99, 211155), (105, 199089), (135, 154847), (165, 126693), (189, 110605), (231, 90495), (297, 70385), (315, 66363), (385, 54297), (495, 42231), (693, 30165), (945, 22121), (1155, 18099), (1485, 14077), (2011, 10395), (2079, 10055), (3465, 6033)]