18664386

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{239287}}^1$

素因数の和:239305

約数の個数: 16

約数和(自身を含む): 40200384

約数和(自身を除く): 21535998

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 239287, 478574, 717861, 1435722, 3110731, 6221462, 9332193, 18664386]

約数ペア:

[(1, 18664386), (2, 9332193), (3, 6221462), (6, 3110731), (13, 1435722), (26, 717861), (39, 478574), (78, 239287)]