18531441

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{307}}^1\times {\mathrm{353}}^1$

素因数の和:685

約数の個数: 24

約数和(自身を含む): 28348320

約数和(自身を除く): 9816879

約数列:

[1, 3, 9, 19, 57, 171, 307, 353, 921, 1059, 2763, 3177, 5833, 6707, 17499, 20121, 52497, 60363, 108371, 325113, 975339, 2059049, 6177147, 18531441]

約数ペア:

[(1, 18531441), (3, 6177147), (9, 2059049), (19, 975339), (57, 325113), (171, 108371), (307, 60363), (353, 52497), (921, 20121), (1059, 17499), (2763, 6707), (3177, 5833)]