21002318

素因数分解:

$2^1\times {\mathrm{43}}^1\times {\mathrm{103}}^1\times {\mathrm{2371}}^1$

素因数の和:2519

約数の個数: 16

約数和(自身を含む): 32562816

約数和(自身を除く): 11560498

約数列:

[1, 2, 43, 86, 103, 206, 2371, 4429, 4742, 8858, 101953, 203906, 244213, 488426, 10501159, 21002318]

約数ペア:

[(1, 21002318), (2, 10501159), (43, 488426), (86, 244213), (103, 203906), (206, 101953), (2371, 8858), (4429, 4742)]