31847121

素因数分解:

$3^3\times {\mathrm{37}}^1\times {\mathrm{71}}^1\times {\mathrm{449}}^1$

素因数の和:566

約数の個数: 32

約数和(自身を含む): 49248000

約数和(自身を除く): 17400879

約数列:

[1, 3, 9, 27, 37, 71, 111, 213, 333, 449, 639, 999, 1347, 1917, 2627, 4041, 7881, 12123, 16613, 23643, 31879, 49839, 70929, 95637, 149517, 286911, 448551, 860733, 1179523, 3538569, 10615707, 31847121]

約数ペア:

[(1, 31847121), (3, 10615707), (9, 3538569), (27, 1179523), (37, 860733), (71, 448551), (111, 286911), (213, 149517), (333, 95637), (449, 70929), (639, 49839), (999, 31879), (1347, 23643), (1917, 16613), (2627, 12123), (4041, 7881)]