217618317

素因数分解:

$3^2\times 7^1\times {\mathrm{227}}^1\times {\mathrm{15217}}^1$

素因数の和:15457

約数の個数: 24

約数和(自身を含む): 360849216

約数和(自身を除く): 143230899

約数列:

[1, 3, 7, 9, 21, 63, 227, 681, 1589, 2043, 4767, 14301, 15217, 45651, 106519, 136953, 319557, 958671, 3454259, 10362777, 24179813, 31088331, 72539439, 217618317]

約数ペア:

[(1, 217618317), (3, 72539439), (7, 31088331), (9, 24179813), (21, 10362777), (63, 3454259), (227, 958671), (681, 319557), (1589, 136953), (2043, 106519), (4767, 45651), (14301, 15217)]