638391602

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{199}}^1\times {\mathrm{84421}}^1$

素因数の和:84641

約数の個数: 16

約数和(自身を含む): 1013064000

約数和(自身を除く): 374672398

約数列:

[1, 2, 19, 38, 199, 398, 3781, 7562, 84421, 168842, 1603999, 3207998, 16799779, 33599558, 319195801, 638391602]

約数ペア:

[(1, 638391602), (2, 319195801), (19, 33599558), (38, 16799779), (199, 3207998), (398, 1603999), (3781, 168842), (7562, 84421)]