18090515

素因数分解:

$5^1\times {\mathrm{31}}^1\times {\mathrm{127}}^1\times {\mathrm{919}}^1$

素因数の和:1082

約数の個数: 16

約数和(自身を含む): 22609920

約数和(自身を除く): 4519405

約数列:

[1, 5, 31, 127, 155, 635, 919, 3937, 4595, 19685, 28489, 116713, 142445, 583565, 3618103, 18090515]

約数ペア:

[(1, 18090515), (5, 3618103), (31, 583565), (127, 142445), (155, 116713), (635, 28489), (919, 19685), (3937, 4595)]