2639138

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{199}}^1\times {\mathrm{349}}^1$

素因数の和:569

約数の個数: 16

約数和(自身を含む): 4200000

約数和(自身を除く): 1560862

約数列:

[1, 2, 19, 38, 199, 349, 398, 698, 3781, 6631, 7562, 13262, 69451, 138902, 1319569, 2639138]

約数ペア:

[(1, 2639138), (2, 1319569), (19, 138902), (38, 69451), (199, 13262), (349, 7562), (398, 6631), (698, 3781)]