81639018

素因数分解:

$2^1\times 3^2\times {\mathrm{4535501}}^1$

素因数の和:4535509

約数の個数: 12

約数和(自身を含む): 176884578

約数和(自身を除く): 95245560

約数列:

[1, 2, 3, 6, 9, 18, 4535501, 9071002, 13606503, 27213006, 40819509, 81639018]

約数ペア:

[(1, 81639018), (2, 40819509), (3, 27213006), (6, 13606503), (9, 9071002), (18, 4535501)]