31249621

素因数分解:

${\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{73}}^1\times {\mathrm{149}}^1$

素因数の和:265

約数の個数: 24

約数和(自身を含む): 36563400

約数和(自身を除く): 5313779

約数列:

[1, 13, 17, 73, 149, 169, 221, 949, 1241, 1937, 2533, 2873, 10877, 12337, 16133, 25181, 32929, 141401, 184909, 209729, 428077, 1838213, 2403817, 31249621]

約数ペア:

[(1, 31249621), (13, 2403817), (17, 1838213), (73, 428077), (149, 209729), (169, 184909), (221, 141401), (949, 32929), (1241, 25181), (1937, 16133), (2533, 12337), (2873, 10877)]