20678042

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{191}}^1$

素因数の和:267

約数の個数: 64

約数和(自身を含む): 42024960

約数和(自身を除く): 21346918

約数列:

[1, 2, 7, 11, 14, 19, 22, 37, 38, 74, 77, 133, 154, 191, 209, 259, 266, 382, 407, 418, 518, 703, 814, 1337, 1406, 1463, 2101, 2674, 2849, 2926, 3629, 4202, 4921, 5698, 7067, 7258, 7733, 9842, 14134, 14707, 15466, 25403, 29414, 39919, 49469, 50806, 54131, 77737, 79838, 98938, 108262, 134273, 155474, 268546, 279433, 544159, 558866, 939911, 1088318, 1477003, 1879822, 2954006, 10339021, 20678042]

約数ペア:

[(1, 20678042), (2, 10339021), (7, 2954006), (11, 1879822), (14, 1477003), (19, 1088318), (22, 939911), (37, 558866), (38, 544159), (74, 279433), (77, 268546), (133, 155474), (154, 134273), (191, 108262), (209, 98938), (259, 79838), (266, 77737), (382, 54131), (407, 50806), (418, 49469), (518, 39919), (703, 29414), (814, 25403), (1337, 15466), (1406, 14707), (1463, 14134), (2101, 9842), (2674, 7733), (2849, 7258), (2926, 7067), (3629, 5698), (4202, 4921)]