2190681

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{557}}^1$

素因数の和:605

約数の個数: 24

約数和(自身を含む): 3481920

約数和(自身を除く): 1291239

約数列:

[1, 3, 9, 19, 23, 57, 69, 171, 207, 437, 557, 1311, 1671, 3933, 5013, 10583, 12811, 31749, 38433, 95247, 115299, 243409, 730227, 2190681]

約数ペア:

[(1, 2190681), (3, 730227), (9, 243409), (19, 115299), (23, 95247), (57, 38433), (69, 31749), (171, 12811), (207, 10583), (437, 5013), (557, 3933), (1311, 1671)]