39861981

素因数分解:

$3^2\times {\mathrm{19}}^2\times {\mathrm{12269}}^1$

素因数の和:12313

約数の個数: 18

約数和(自身を含む): 60773310

約数和(自身を除く): 20911329

約数列:

[1, 3, 9, 19, 57, 171, 361, 1083, 3249, 12269, 36807, 110421, 233111, 699333, 2097999, 4429109, 13287327, 39861981]

約数ペア:

[(1, 39861981), (3, 13287327), (9, 4429109), (19, 2097999), (57, 699333), (171, 233111), (361, 110421), (1083, 36807), (3249, 12269)]