18656911

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{3361}}^1$

素因数の和:3442

約数の個数: 16

約数和(自身を含む): 23345728

約数和(自身を除く): 4688817

約数列:

[1, 7, 13, 61, 91, 427, 793, 3361, 5551, 23527, 43693, 205021, 305851, 1435147, 2665273, 18656911]

約数ペア:

[(1, 18656911), (7, 2665273), (13, 1435147), (61, 305851), (91, 205021), (427, 43693), (793, 23527), (3361, 5551)]