199894541

素因数分解:

$7^1\times {\mathrm{11}}^2\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{331}}^1$

素因数の和:414

約数の個数: 48

約数和(自身を含む): 271294464

約数和(自身を除く): 71399923

約数列:

[1, 7, 11, 23, 31, 77, 121, 161, 217, 253, 331, 341, 713, 847, 1771, 2317, 2387, 2783, 3641, 3751, 4991, 7613, 7843, 10261, 19481, 25487, 26257, 40051, 53291, 54901, 71827, 83743, 86273, 112871, 236003, 280357, 586201, 603911, 790097, 921173, 1241581, 1652021, 2596033, 6448211, 8691067, 18172231, 28556363, 199894541]

約数ペア:

[(1, 199894541), (7, 28556363), (11, 18172231), (23, 8691067), (31, 6448211), (77, 2596033), (121, 1652021), (161, 1241581), (217, 921173), (253, 790097), (331, 603911), (341, 586201), (713, 280357), (847, 236003), (1771, 112871), (2317, 86273), (2387, 83743), (2783, 71827), (3641, 54901), (3751, 53291), (4991, 40051), (7613, 26257), (7843, 25487), (10261, 19481)]