19943391

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{269}}^1\times {\mathrm{1901}}^1$

素因数の和:2186

約数の個数: 16

約数和(自身を含む): 28758240

約数和(自身を除く): 8814849

約数列:

[1, 3, 13, 39, 269, 807, 1901, 3497, 5703, 10491, 24713, 74139, 511369, 1534107, 6647797, 19943391]

約数ペア:

[(1, 19943391), (3, 6647797), (13, 1534107), (39, 511369), (269, 74139), (807, 24713), (1901, 10491), (3497, 5703)]