18178839

素因数分解:

$3^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{15187}}^1$

素因数の和:15219

約数の個数: 24

約数和(自身を含む): 31591040

約数和(自身を除く): 13412201

約数列:

[1, 3, 7, 9, 19, 21, 57, 63, 133, 171, 399, 1197, 15187, 45561, 106309, 136683, 288553, 318927, 865659, 956781, 2019871, 2596977, 6059613, 18178839]

約数ペア:

[(1, 18178839), (3, 6059613), (7, 2596977), (9, 2019871), (19, 956781), (21, 865659), (57, 318927), (63, 288553), (133, 136683), (171, 106309), (399, 45561), (1197, 15187)]