20964735

素因数分解:

$3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{1033}}^1$

素因数の和:1096

約数の個数: 48

約数和(自身を含む): 40648608

約数和(自身を除く): 19683873

約数列:

[1, 3, 5, 9, 11, 15, 33, 41, 45, 55, 99, 123, 165, 205, 369, 451, 495, 615, 1033, 1353, 1845, 2255, 3099, 4059, 5165, 6765, 9297, 11363, 15495, 20295, 34089, 42353, 46485, 56815, 102267, 127059, 170445, 211765, 381177, 465883, 511335, 635295, 1397649, 1905885, 2329415, 4192947, 6988245, 20964735]

約数ペア:

[(1, 20964735), (3, 6988245), (5, 4192947), (9, 2329415), (11, 1905885), (15, 1397649), (33, 635295), (41, 511335), (45, 465883), (55, 381177), (99, 211765), (123, 170445), (165, 127059), (205, 102267), (369, 56815), (451, 46485), (495, 42353), (615, 34089), (1033, 20295), (1353, 15495), (1845, 11363), (2255, 9297), (3099, 6765), (4059, 5165)]