18987135

素因数分解:

$3^1\times 5^1\times {\mathrm{127}}^1\times {\mathrm{9967}}^1$

素因数の和:10102

約数の個数: 16

約数和(自身を含む): 30621696

約数和(自身を除く): 11634561

約数列:

[1, 3, 5, 15, 127, 381, 635, 1905, 9967, 29901, 49835, 149505, 1265809, 3797427, 6329045, 18987135]

約数ペア:

[(1, 18987135), (3, 6329045), (5, 3797427), (15, 1265809), (127, 149505), (381, 49835), (635, 29901), (1905, 9967)]