39957543

素因数分解:

$3^4\times {\mathrm{31}}^1\times {\mathrm{15913}}^1$

素因数の和:15956

約数の個数: 20

約数和(自身を含む): 61619008

約数和(自身を除く): 21661465

約数列:

[1, 3, 9, 27, 31, 81, 93, 279, 837, 2511, 15913, 47739, 143217, 429651, 493303, 1288953, 1479909, 4439727, 13319181, 39957543]

約数ペア:

[(1, 39957543), (3, 13319181), (9, 4439727), (27, 1479909), (31, 1288953), (81, 493303), (93, 429651), (279, 143217), (837, 47739), (2511, 15913)]