1218765

素因数分解:

$3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{2621}}^1$

素因数の和:2660

約数の個数: 16

約数和(自身を含む): 2013696

約数和(自身を除く): 794931

約数列:

[1, 3, 5, 15, 31, 93, 155, 465, 2621, 7863, 13105, 39315, 81251, 243753, 406255, 1218765]

約数ペア:

[(1, 1218765), (3, 406255), (5, 243753), (15, 81251), (31, 39315), (93, 13105), (155, 7863), (465, 2621)]