245992851

素因数分解:

$3^2\times {\mathrm{13}}^2\times {\mathrm{161731}}^1$

素因数の和:161763

約数の個数: 18

約数和(自身を含む): 384760428

約数和(自身を除く): 138767577

約数列:

[1, 3, 9, 13, 39, 117, 169, 507, 1521, 161731, 485193, 1455579, 2102503, 6307509, 18922527, 27332539, 81997617, 245992851]

約数ペア:

[(1, 245992851), (3, 81997617), (9, 27332539), (13, 18922527), (39, 6307509), (117, 2102503), (169, 1455579), (507, 485193), (1521, 161731)]