215821017

素因数分解:

$3^4\times {\mathrm{1321}}^1\times {\mathrm{2017}}^1$

素因数の和:3350

約数の個数: 20

約数和(自身を含む): 322803316

約数和(自身を除く): 106982299

約数列:

[1, 3, 9, 27, 81, 1321, 2017, 3963, 6051, 11889, 18153, 35667, 54459, 107001, 163377, 2664457, 7993371, 23980113, 71940339, 215821017]

約数ペア:

[(1, 215821017), (3, 71940339), (9, 23980113), (27, 7993371), (81, 2664457), (1321, 163377), (2017, 107001), (3963, 54459), (6051, 35667), (11889, 18153)]