131481609

素因数分解:

$3^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{169217}}^1$

素因数の和:169264

約数の個数: 16

約数和(自身を含む): 205769088

約数和(自身を除く): 74287479

約数列:

[1, 3, 7, 21, 37, 111, 259, 777, 169217, 507651, 1184519, 3553557, 6261029, 18783087, 43827203, 131481609]

約数ペア:

[(1, 131481609), (3, 43827203), (7, 18783087), (21, 6261029), (37, 3553557), (111, 1184519), (259, 507651), (777, 169217)]