20781486

素因数分解:

$2^1\times 3^2\times {\mathrm{11}}^1\times {\mathrm{103}}^1\times {\mathrm{1019}}^1$

素因数の和:1141

約数の個数: 48

約数和(自身を含む): 49645440

約数和(自身を除く): 28863954

約数列:

[1, 2, 3, 6, 9, 11, 18, 22, 33, 66, 99, 103, 198, 206, 309, 618, 927, 1019, 1133, 1854, 2038, 2266, 3057, 3399, 6114, 6798, 9171, 10197, 11209, 18342, 20394, 22418, 33627, 67254, 100881, 104957, 201762, 209914, 314871, 629742, 944613, 1154527, 1889226, 2309054, 3463581, 6927162, 10390743, 20781486]

約数ペア:

[(1, 20781486), (2, 10390743), (3, 6927162), (6, 3463581), (9, 2309054), (11, 1889226), (18, 1154527), (22, 944613), (33, 629742), (66, 314871), (99, 209914), (103, 201762), (198, 104957), (206, 100881), (309, 67254), (618, 33627), (927, 22418), (1019, 20394), (1133, 18342), (1854, 11209), (2038, 10197), (2266, 9171), (3057, 6798), (3399, 6114)]