20781706

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{83}}^1\times {\mathrm{599}}^1$

素因数の和:714

約数の個数: 32

約数和(自身を含む): 36288000

約数和(自身を除く): 15506294

約数列:

[1, 2, 11, 19, 22, 38, 83, 166, 209, 418, 599, 913, 1198, 1577, 1826, 3154, 6589, 11381, 13178, 17347, 22762, 34694, 49717, 99434, 125191, 250382, 546887, 944623, 1093774, 1889246, 10390853, 20781706]

約数ペア:

[(1, 20781706), (2, 10390853), (11, 1889246), (19, 1093774), (22, 944623), (38, 546887), (83, 250382), (166, 125191), (209, 99434), (418, 49717), (599, 34694), (913, 22762), (1198, 17347), (1577, 13178), (1826, 11381), (3154, 6589)]