21807412

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{109}}^1\times {\mathrm{4547}}^1$

素因数の和:4671

約数の個数: 24

約数和(自身を含む): 42023520

約数和(自身を除く): 20216108

約数列:

[1, 2, 4, 11, 22, 44, 109, 218, 436, 1199, 2398, 4547, 4796, 9094, 18188, 50017, 100034, 200068, 495623, 991246, 1982492, 5451853, 10903706, 21807412]

約数ペア:

[(1, 21807412), (2, 10903706), (4, 5451853), (11, 1982492), (22, 991246), (44, 495623), (109, 200068), (218, 100034), (436, 50017), (1199, 18188), (2398, 9094), (4547, 4796)]