21475210

素因数分解:

$2^1\times 5^1\times {\mathrm{421}}^1\times {\mathrm{5101}}^1$

素因数の和:5529

約数の個数: 16

約数和(自身を含む): 38754792

約数和(自身を除く): 17279582

約数列:

[1, 2, 5, 10, 421, 842, 2105, 4210, 5101, 10202, 25505, 51010, 2147521, 4295042, 10737605, 21475210]

約数ペア:

[(1, 21475210), (2, 10737605), (5, 4295042), (10, 2147521), (421, 51010), (842, 25505), (2105, 10202), (4210, 5101)]