21335090

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{43541}}^1$

素因数の和:43562

約数の個数: 24

約数和(自身を含む): 44674092

約数和(自身を除く): 23339002

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 245, 490, 43541, 87082, 217705, 304787, 435410, 609574, 1523935, 2133509, 3047870, 4267018, 10667545, 21335090]

約数ペア:

[(1, 21335090), (2, 10667545), (5, 4267018), (7, 3047870), (10, 2133509), (14, 1523935), (35, 609574), (49, 435410), (70, 304787), (98, 217705), (245, 87082), (490, 43541)]