205409529

素因数分解:

$3^2\times {\mathrm{13}}^2\times {\mathrm{135049}}^1$

素因数の和:135081

約数の個数: 18

約数和(自身を含む): 321283950

約数和(自身を除く): 115874421

約数列:

[1, 3, 9, 13, 39, 117, 169, 507, 1521, 135049, 405147, 1215441, 1755637, 5266911, 15800733, 22823281, 68469843, 205409529]

約数ペア:

[(1, 205409529), (3, 68469843), (9, 22823281), (13, 15800733), (39, 5266911), (117, 1755637), (169, 1215441), (507, 405147), (1521, 135049)]