21028558

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{673}}^1\times {\mathrm{919}}^1$

素因数の和:1611

約数の個数: 16

約数和(自身を含む): 33484320

約数和(自身を除く): 12455762

約数列:

[1, 2, 17, 34, 673, 919, 1346, 1838, 11441, 15623, 22882, 31246, 618487, 1236974, 10514279, 21028558]

約数ペア:

[(1, 21028558), (2, 10514279), (17, 1236974), (34, 618487), (673, 31246), (919, 22882), (1346, 15623), (1838, 11441)]