2137455

素因数分解:

$3^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{223}}^1$

素因数の和:308

約数の個数: 32

約数和(自身を含む): 3870720

約数和(自身を除く): 1733265

約数列:

[1, 3, 5, 9, 15, 27, 45, 71, 135, 213, 223, 355, 639, 669, 1065, 1115, 1917, 2007, 3195, 3345, 6021, 9585, 10035, 15833, 30105, 47499, 79165, 142497, 237495, 427491, 712485, 2137455]

約数ペア:

[(1, 2137455), (3, 712485), (5, 427491), (9, 237495), (15, 142497), (27, 79165), (45, 47499), (71, 30105), (135, 15833), (213, 10035), (223, 9585), (355, 6021), (639, 3345), (669, 3195), (1065, 2007), (1115, 1917)]