171920181

素因数分解:

$3^1\times {\mathrm{53}}^1\times {\mathrm{71}}^1\times {\mathrm{97}}^1\times {\mathrm{157}}^1$

素因数の和:381

約数の個数: 32

約数和(自身を含む): 240807168

約数和(自身を除く): 68886987

約数列:

[1, 3, 53, 71, 97, 157, 159, 213, 291, 471, 3763, 5141, 6887, 8321, 11147, 11289, 15229, 15423, 20661, 24963, 33441, 45687, 365011, 590791, 807137, 1081259, 1095033, 1772373, 2421411, 3243777, 57306727, 171920181]

約数ペア:

[(1, 171920181), (3, 57306727), (53, 3243777), (71, 2421411), (97, 1772373), (157, 1095033), (159, 1081259), (213, 807137), (291, 590791), (471, 365011), (3763, 45687), (5141, 33441), (6887, 24963), (8321, 20661), (11147, 15423), (11289, 15229)]