12991665

素因数分解:

$3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{37657}}^1$

素因数の和:37688

約数の個数: 16

約数和(自身を含む): 21691008

約数和(自身を除く): 8699343

約数列:

[1, 3, 5, 15, 23, 69, 115, 345, 37657, 112971, 188285, 564855, 866111, 2598333, 4330555, 12991665]

約数ペア:

[(1, 12991665), (3, 4330555), (5, 2598333), (15, 866111), (23, 564855), (69, 188285), (115, 112971), (345, 37657)]