19986918

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{475879}}^1$

素因数の和:475891

約数の個数: 16

約数和(自身を含む): 45684480

約数和(自身を除く): 25697562

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 475879, 951758, 1427637, 2855274, 3331153, 6662306, 9993459, 19986918]

約数ペア:

[(1, 19986918), (2, 9993459), (3, 6662306), (6, 3331153), (7, 2855274), (14, 1427637), (21, 951758), (42, 475879)]