87670921

素因数分解:

${\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{20879}}^1$

素因数の和:20928

約数の個数: 16

約数和(自身を含む): 105235200

約数和(自身を除く): 17564279

約数列:

[1, 13, 17, 19, 221, 247, 323, 4199, 20879, 271427, 354943, 396701, 4614259, 5157113, 6743917, 87670921]

約数ペア:

[(1, 87670921), (13, 6743917), (17, 5157113), (19, 4614259), (221, 396701), (247, 354943), (323, 271427), (4199, 20879)]