81702021

素因数分解:

$3^1\times {\mathrm{43}}^1\times {\mathrm{127}}^1\times {\mathrm{4987}}^1$

素因数の和:5160

約数の個数: 16

約数和(自身を含む): 112369664

約数和(自身を除く): 30667643

約数列:

[1, 3, 43, 127, 129, 381, 4987, 5461, 14961, 16383, 214441, 633349, 643323, 1900047, 27234007, 81702021]

約数ペア:

[(1, 81702021), (3, 27234007), (43, 1900047), (127, 643323), (129, 633349), (381, 214441), (4987, 16383), (5461, 14961)]