21000434708

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{67}}^1\times {\mathrm{173}}^1\times {\mathrm{41177}}^1$

素因数の和:41432

約数の個数: 48

約数和(自身を含む): 40926320064

約数和(自身を除く): 19925885356

約数列:

[1, 2, 4, 11, 22, 44, 67, 134, 173, 268, 346, 692, 737, 1474, 1903, 2948, 3806, 7612, 11591, 23182, 41177, 46364, 82354, 127501, 164708, 255002, 452947, 510004, 905894, 1811788, 2758859, 5517718, 7123621, 11035436, 14247242, 28494484, 30347449, 60694898, 78359831, 121389796, 156719662, 313439324, 477282607, 954565214, 1909130428, 5250108677, 10500217354, 21000434708]

約数ペア:

[(1, 21000434708), (2, 10500217354), (4, 5250108677), (11, 1909130428), (22, 954565214), (44, 477282607), (67, 313439324), (134, 156719662), (173, 121389796), (268, 78359831), (346, 60694898), (692, 30347449), (737, 28494484), (1474, 14247242), (1903, 11035436), (2948, 7123621), (3806, 5517718), (7612, 2758859), (11591, 1811788), (23182, 905894), (41177, 510004), (46364, 452947), (82354, 255002), (127501, 164708)]