21253645

素因数分解:

$5^1\times 7^1\times {\mathrm{89}}^1\times {\mathrm{6823}}^1$

素因数の和:6924

約数の個数: 16

約数和(自身を含む): 29479680

約数和(自身を除く): 8226035

約数列:

[1, 5, 7, 35, 89, 445, 623, 3115, 6823, 34115, 47761, 238805, 607247, 3036235, 4250729, 21253645]

約数ペア:

[(1, 21253645), (5, 4250729), (7, 3036235), (35, 607247), (89, 238805), (445, 47761), (623, 34115), (3115, 6823)]