21280504

素因数分解:

$2^3\times 7^2\times {\mathrm{54287}}^1$

素因数の和:54307

約数の個数: 24

約数和(自身を含む): 46416240

約数和(自身を除く): 25135736

約数列:

[1, 2, 4, 7, 8, 14, 28, 49, 56, 98, 196, 392, 54287, 108574, 217148, 380009, 434296, 760018, 1520036, 2660063, 3040072, 5320126, 10640252, 21280504]

約数ペア:

[(1, 21280504), (2, 10640252), (4, 5320126), (7, 3040072), (8, 2660063), (14, 1520036), (28, 760018), (49, 434296), (56, 380009), (98, 217148), (196, 108574), (392, 54287)]