81321747

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{641}}^1\times {\mathrm{3253}}^1$

素因数の和:3910

約数の個数: 16

約数和(自身を含む): 116987808

約数和(自身を除く): 35666061

約数列:

[1, 3, 13, 39, 641, 1923, 3253, 8333, 9759, 24999, 42289, 126867, 2085173, 6255519, 27107249, 81321747]

約数ペア:

[(1, 81321747), (3, 27107249), (13, 6255519), (39, 2085173), (641, 126867), (1923, 42289), (3253, 24999), (8333, 9759)]