20281341

素因数分解:

$3^1\times {\mathrm{19}}^2\times {\mathrm{61}}^1\times {\mathrm{307}}^1$

素因数の和:409

約数の個数: 24

約数和(自身を含む): 29102304

約数和(自身を除く): 8820963

約数列:

[1, 3, 19, 57, 61, 183, 307, 361, 921, 1083, 1159, 3477, 5833, 17499, 18727, 22021, 56181, 66063, 110827, 332481, 355813, 1067439, 6760447, 20281341]

約数ペア:

[(1, 20281341), (3, 6760447), (19, 1067439), (57, 355813), (61, 332481), (183, 110827), (307, 66063), (361, 56181), (921, 22021), (1083, 18727), (1159, 17499), (3477, 5833)]