161715519

素因数分解:

$3^2\times 7^1\times {\mathrm{59}}^1\times {\mathrm{139}}^1\times {\mathrm{313}}^1$

素因数の和:524

約数の個数: 48

約数和(自身を含む): 274310400

約数和(自身を除く): 112594881

約数列:

[1, 3, 7, 9, 21, 59, 63, 139, 177, 313, 413, 417, 531, 939, 973, 1239, 1251, 2191, 2817, 2919, 3717, 6573, 8201, 8757, 18467, 19719, 24603, 43507, 55401, 57407, 73809, 129269, 130521, 166203, 172221, 304549, 387807, 391563, 516663, 913647, 1163421, 2566913, 2740941, 7700739, 17968391, 23102217, 53905173, 161715519]

約数ペア:

[(1, 161715519), (3, 53905173), (7, 23102217), (9, 17968391), (21, 7700739), (59, 2740941), (63, 2566913), (139, 1163421), (177, 913647), (313, 516663), (413, 391563), (417, 387807), (531, 304549), (939, 172221), (973, 166203), (1239, 130521), (1251, 129269), (2191, 73809), (2817, 57407), (2919, 55401), (3717, 43507), (6573, 24603), (8201, 19719), (8757, 18467)]