19655139

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{49261}}^1$

素因数の和:49290

約数の個数: 16

約数和(自身を含む): 31527680

約数和(自身を除く): 11872541

約数列:

[1, 3, 7, 19, 21, 57, 133, 399, 49261, 147783, 344827, 935959, 1034481, 2807877, 6551713, 19655139]

約数ペア:

[(1, 19655139), (3, 6551713), (7, 2807877), (19, 1034481), (21, 935959), (57, 344827), (133, 147783), (399, 49261)]