12819105

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{1289}}^1$

素因数の和:1330

約数の個数: 48

約数和(自身を含む): 25356240

約数和(自身を除く): 12537135

約数列:

[1, 3, 5, 9, 13, 15, 17, 39, 45, 51, 65, 85, 117, 153, 195, 221, 255, 585, 663, 765, 1105, 1289, 1989, 3315, 3867, 6445, 9945, 11601, 16757, 19335, 21913, 50271, 58005, 65739, 83785, 109565, 150813, 197217, 251355, 284869, 328695, 754065, 854607, 986085, 1424345, 2563821, 4273035, 12819105]

約数ペア:

[(1, 12819105), (3, 4273035), (5, 2563821), (9, 1424345), (13, 986085), (15, 854607), (17, 754065), (39, 328695), (45, 284869), (51, 251355), (65, 197217), (85, 150813), (117, 109565), (153, 83785), (195, 65739), (221, 58005), (255, 50271), (585, 21913), (663, 19335), (765, 16757), (1105, 11601), (1289, 9945), (1989, 6445), (3315, 3867)]