12865839

素因数分解:

$3^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{8629}}^1$

素因数の和:8710

約数の個数: 16

約数和(自身を含む): 19883520

約数和(自身を除く): 7017681

約数列:

[1, 3, 7, 21, 71, 213, 497, 1491, 8629, 25887, 60403, 181209, 612659, 1837977, 4288613, 12865839]

約数ペア:

[(1, 12865839), (3, 4288613), (7, 1837977), (21, 612659), (71, 181209), (213, 60403), (497, 25887), (1491, 8629)]