18423369

素因数分解:

$3^4\times {\mathrm{19}}^1\times {\mathrm{11971}}^1$

素因数の和:12002

約数の個数: 20

約数和(自身を含む): 28972240

約数和(自身を除く): 10548871

約数列:

[1, 3, 9, 19, 27, 57, 81, 171, 513, 1539, 11971, 35913, 107739, 227449, 323217, 682347, 969651, 2047041, 6141123, 18423369]

約数ペア:

[(1, 18423369), (3, 6141123), (9, 2047041), (19, 969651), (27, 682347), (57, 323217), (81, 227449), (171, 107739), (513, 35913), (1539, 11971)]