15661779921

素因数分解:

$3^3\times {\mathrm{2389}}^1\times {\mathrm{242807}}^1$

素因数の和:245205

約数の個数: 16

約数和(自身を含む): 23212444800

約数和(自身を除く): 7550664879

約数列:

[1, 3, 9, 27, 2389, 7167, 21501, 64503, 242807, 728421, 2185263, 6555789, 580065923, 1740197769, 5220593307, 15661779921]

約数ペア:

[(1, 15661779921), (3, 5220593307), (9, 1740197769), (27, 580065923), (2389, 6555789), (7167, 2185263), (21501, 728421), (64503, 242807)]