19812781998

素因数分解:

$2^1\times 3^2\times {\mathrm{1361}}^1\times {\mathrm{808751}}^1$

素因数の和:810120

約数の個数: 24

約数和(自身を含む): 42959288736

約数和(自身を除く): 23146506738

約数列:

[1, 2, 3, 6, 9, 18, 1361, 2722, 4083, 8166, 12249, 24498, 808751, 1617502, 2426253, 4852506, 7278759, 14557518, 1100710111, 2201420222, 3302130333, 6604260666, 9906390999, 19812781998]

約数ペア:

[(1, 19812781998), (2, 9906390999), (3, 6604260666), (6, 3302130333), (9, 2201420222), (18, 1100710111), (1361, 14557518), (2722, 7278759), (4083, 4852506), (8166, 2426253), (12249, 1617502), (24498, 808751)]