20671630

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{42187}}^1$

素因数の和:42208

約数の個数: 24

約数和(自身を含む): 43284888

約数和(自身を除く): 22613258

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 245, 490, 42187, 84374, 210935, 295309, 421870, 590618, 1476545, 2067163, 2953090, 4134326, 10335815, 20671630]

約数ペア:

[(1, 20671630), (2, 10335815), (5, 4134326), (7, 2953090), (10, 2067163), (14, 1476545), (35, 590618), (49, 421870), (70, 295309), (98, 210935), (245, 84374), (490, 42187)]