20157803217

素因数分解:

$3^2\times {\mathrm{41}}^1\times {\mathrm{83}}^1\times {\mathrm{241}}^1\times {\mathrm{2731}}^1$

素因数の和:3102

約数の個数: 48

約数和(自身を含む): 30322708416

約数和(自身を除く): 10164905199

約数列:

[1, 3, 9, 41, 83, 123, 241, 249, 369, 723, 747, 2169, 2731, 3403, 8193, 9881, 10209, 20003, 24579, 29643, 30627, 60009, 88929, 111971, 180027, 226673, 335913, 658171, 680019, 820123, 1007739, 1974513, 2040057, 2460369, 5923539, 7381107, 9293593, 26985011, 27880779, 54628193, 80955033, 83642337, 163884579, 242865099, 491653737, 2239755913, 6719267739, 20157803217]

約数ペア:

[(1, 20157803217), (3, 6719267739), (9, 2239755913), (41, 491653737), (83, 242865099), (123, 163884579), (241, 83642337), (249, 80955033), (369, 54628193), (723, 27880779), (747, 26985011), (2169, 9293593), (2731, 7381107), (3403, 5923539), (8193, 2460369), (9881, 2040057), (10209, 1974513), (20003, 1007739), (24579, 820123), (29643, 680019), (30627, 658171), (60009, 335913), (88929, 226673), (111971, 180027)]