87141999

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{218401}}^1$

素因数の和:218430

約数の個数: 16

約数和(自身を含む): 139777280

約数和(自身を除く): 52635281

約数列:

[1, 3, 7, 19, 21, 57, 133, 399, 218401, 655203, 1528807, 4149619, 4586421, 12448857, 29047333, 87141999]

約数ペア:

[(1, 87141999), (3, 29047333), (7, 12448857), (19, 4586421), (21, 4149619), (57, 1528807), (133, 655203), (399, 218401)]