2009991

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{179}}^1\times {\mathrm{197}}^1$

素因数の和:398

約数の個数: 16

約数和(自身を含む): 2851200

約数和(自身を除く): 841209

約数列:

[1, 3, 19, 57, 179, 197, 537, 591, 3401, 3743, 10203, 11229, 35263, 105789, 669997, 2009991]

約数ペア:

[(1, 2009991), (3, 669997), (19, 105789), (57, 35263), (179, 11229), (197, 10203), (537, 3743), (591, 3401)]