12686905

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{1063}}^1$

素因数の和:1117

約数の個数: 32

約数和(自身を含む): 19611648

約数和(自身を除く): 6924743

約数列:

[1, 5, 7, 11, 31, 35, 55, 77, 155, 217, 341, 385, 1063, 1085, 1705, 2387, 5315, 7441, 11693, 11935, 32953, 37205, 58465, 81851, 164765, 230671, 362483, 409255, 1153355, 1812415, 2537381, 12686905]

約数ペア:

[(1, 12686905), (5, 2537381), (7, 1812415), (11, 1153355), (31, 409255), (35, 362483), (55, 230671), (77, 164765), (155, 81851), (217, 58465), (341, 37205), (385, 32953), (1063, 11935), (1085, 11693), (1705, 7441), (2387, 5315)]