81217857

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{227501}}^1$

素因数の和:227528

約数の個数: 16

約数和(自身を含む): 131041152

約数和(自身を除く): 49823295

約数列:

[1, 3, 7, 17, 21, 51, 119, 357, 227501, 682503, 1592507, 3867517, 4777521, 11602551, 27072619, 81217857]

約数ペア:

[(1, 81217857), (3, 27072619), (7, 11602551), (17, 4777521), (21, 3867517), (51, 1592507), (119, 682503), (357, 227501)]