19771059

素因数分解:

$3^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{12227}}^1$

素因数の和:12255

約数の個数: 24

約数和(自身を含む): 33455808

約数和(自身を除く): 13684749

約数列:

[1, 3, 7, 11, 21, 33, 49, 77, 147, 231, 539, 1617, 12227, 36681, 85589, 134497, 256767, 403491, 599123, 941479, 1797369, 2824437, 6590353, 19771059]

約数ペア:

[(1, 19771059), (3, 6590353), (7, 2824437), (11, 1797369), (21, 941479), (33, 599123), (49, 403491), (77, 256767), (147, 134497), (231, 85589), (539, 36681), (1617, 12227)]