13257015

素因数分解:

$3^1\times 5^1\times {\mathrm{787}}^1\times {\mathrm{1123}}^1$

素因数の和:1918

約数の個数: 16

約数和(自身を含む): 21257088

約数和(自身を除く): 8000073

約数列:

[1, 3, 5, 15, 787, 1123, 2361, 3369, 3935, 5615, 11805, 16845, 883801, 2651403, 4419005, 13257015]

約数ペア:

[(1, 13257015), (3, 4419005), (5, 2651403), (15, 883801), (787, 16845), (1123, 11805), (2361, 5615), (3369, 3935)]