20042055

素因数分解:

$3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{2131}}^1$

素因数の和:2172

約数の個数: 48

約数和(自身を含む): 39911040

約数和(自身を除く): 19868985

約数列:

[1, 3, 5, 9, 11, 15, 19, 33, 45, 55, 57, 95, 99, 165, 171, 209, 285, 495, 627, 855, 1045, 1881, 2131, 3135, 6393, 9405, 10655, 19179, 23441, 31965, 40489, 70323, 95895, 117205, 121467, 202445, 210969, 351615, 364401, 445379, 607335, 1054845, 1336137, 1822005, 2226895, 4008411, 6680685, 20042055]

約数ペア:

[(1, 20042055), (3, 6680685), (5, 4008411), (9, 2226895), (11, 1822005), (15, 1336137), (19, 1054845), (33, 607335), (45, 445379), (55, 364401), (57, 351615), (95, 210969), (99, 202445), (165, 121467), (171, 117205), (209, 95895), (285, 70323), (495, 40489), (627, 31965), (855, 23441), (1045, 19179), (1881, 10655), (2131, 9405), (3135, 6393)]