18903183

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{149}}^1\times {\mathrm{3253}}^1$

素因数の和:3418

約数の個数: 16

約数和(自身を含む): 27333600

約数和(自身を除く): 8430417

約数列:

[1, 3, 13, 39, 149, 447, 1937, 3253, 5811, 9759, 42289, 126867, 484697, 1454091, 6301061, 18903183]

約数ペア:

[(1, 18903183), (3, 6301061), (13, 1454091), (39, 484697), (149, 126867), (447, 42289), (1937, 9759), (3253, 5811)]