21002870

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{42863}}^1$

素因数の和:42884

約数の個数: 24

約数和(自身を含む): 43978464

約数和(自身を除く): 22975594

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 245, 490, 42863, 85726, 214315, 300041, 428630, 600082, 1500205, 2100287, 3000410, 4200574, 10501435, 21002870]

約数ペア:

[(1, 21002870), (2, 10501435), (5, 4200574), (7, 3000410), (10, 2100287), (14, 1500205), (35, 600082), (49, 428630), (70, 300041), (98, 214315), (245, 85726), (490, 42863)]