21024370

素因数分解:

$2^1\times 5^1\times {\mathrm{1297}}^1\times {\mathrm{1621}}^1$

素因数の和:2925

約数の個数: 16

約数和(自身を含む): 37896408

約数和(自身を除く): 16872038

約数列:

[1, 2, 5, 10, 1297, 1621, 2594, 3242, 6485, 8105, 12970, 16210, 2102437, 4204874, 10512185, 21024370]

約数ペア:

[(1, 21024370), (2, 10512185), (5, 4204874), (10, 2102437), (1297, 16210), (1621, 12970), (2594, 8105), (3242, 6485)]