2213991

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{127}}^1\times {\mathrm{149}}^1$

素因数の和:295

約数の個数: 24

約数和(自身を含む): 3494400

約数和(自身を除く): 1280409

約数列:

[1, 3, 9, 13, 39, 117, 127, 149, 381, 447, 1143, 1341, 1651, 1937, 4953, 5811, 14859, 17433, 18923, 56769, 170307, 245999, 737997, 2213991]

約数ペア:

[(1, 2213991), (3, 737997), (9, 245999), (13, 170307), (39, 56769), (117, 18923), (127, 17433), (149, 14859), (381, 5811), (447, 4953), (1143, 1937), (1341, 1651)]