21206270

素因数分解:

$2^1\times 5^1\times {\mathrm{449}}^1\times {\mathrm{4723}}^1$

素因数の和:5179

約数の個数: 16

約数和(自身を含む): 38264400

約数和(自身を除く): 17058130

約数列:

[1, 2, 5, 10, 449, 898, 2245, 4490, 4723, 9446, 23615, 47230, 2120627, 4241254, 10603135, 21206270]

約数ペア:

[(1, 21206270), (2, 10603135), (5, 4241254), (10, 2120627), (449, 47230), (898, 23615), (2245, 9446), (4490, 4723)]