21231414

素因数分解:

$2^1\times 3^2\times {\mathrm{37}}^1\times {\mathrm{71}}^1\times {\mathrm{449}}^1$

素因数の和:565

約数の個数: 48

約数和(自身を含む): 48016800

約数和(自身を除く): 26785386

約数列:

[1, 2, 3, 6, 9, 18, 37, 71, 74, 111, 142, 213, 222, 333, 426, 449, 639, 666, 898, 1278, 1347, 2627, 2694, 4041, 5254, 7881, 8082, 15762, 16613, 23643, 31879, 33226, 47286, 49839, 63758, 95637, 99678, 149517, 191274, 286911, 299034, 573822, 1179523, 2359046, 3538569, 7077138, 10615707, 21231414]

約数ペア:

[(1, 21231414), (2, 10615707), (3, 7077138), (6, 3538569), (9, 2359046), (18, 1179523), (37, 573822), (71, 299034), (74, 286911), (111, 191274), (142, 149517), (213, 99678), (222, 95637), (333, 63758), (426, 49839), (449, 47286), (639, 33226), (666, 31879), (898, 23643), (1278, 16613), (1347, 15762), (2627, 8082), (2694, 7881), (4041, 5254)]