261585789

素因数分解:

$3^1\times {\mathrm{107}}^1\times {\mathrm{509}}^1\times {\mathrm{1601}}^1$

素因数の和:2220

約数の個数: 16

約数和(自身を含む): 352952640

約数和(自身を除く): 91366851

約数列:

[1, 3, 107, 321, 509, 1527, 1601, 4803, 54463, 163389, 171307, 513921, 814909, 2444727, 87195263, 261585789]

約数ペア:

[(1, 261585789), (3, 87195263), (107, 2444727), (321, 814909), (509, 513921), (1527, 171307), (1601, 163389), (4803, 54463)]