13403978

素因数分解:

$2^1\times 7^1\times {\mathrm{643}}^1\times {\mathrm{1489}}^1$

素因数の和:2141

約数の個数: 16

約数和(自身を含む): 23029440

約数和(自身を除く): 9625462

約数列:

[1, 2, 7, 14, 643, 1286, 1489, 2978, 4501, 9002, 10423, 20846, 957427, 1914854, 6701989, 13403978]

約数ペア:

[(1, 13403978), (2, 6701989), (7, 1914854), (14, 957427), (643, 20846), (1286, 10423), (1489, 9002), (2978, 4501)]