155511257

素因数分解:

${\mathrm{11}}^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{173}}^1$

素因数の和:254

約数の個数: 48

約数和(自身を含む): 199946880

約数和(自身を除く): 44435623

約数列:

[1, 11, 17, 19, 23, 121, 173, 187, 209, 253, 323, 391, 437, 1903, 2057, 2299, 2783, 2941, 3287, 3553, 3979, 4301, 4807, 7429, 20933, 32351, 36157, 39083, 43769, 47311, 52877, 55879, 67643, 75601, 81719, 355861, 397727, 481459, 614669, 744073, 831611, 898909, 1285217, 6761359, 8184803, 9147721, 14137387, 155511257]

約数ペア:

[(1, 155511257), (11, 14137387), (17, 9147721), (19, 8184803), (23, 6761359), (121, 1285217), (173, 898909), (187, 831611), (209, 744073), (253, 614669), (323, 481459), (391, 397727), (437, 355861), (1903, 81719), (2057, 75601), (2299, 67643), (2783, 55879), (2941, 52877), (3287, 47311), (3553, 43769), (3979, 39083), (4301, 36157), (4807, 32351), (7429, 20933)]