19707028

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{19}}^1\times {\mathrm{2143}}^1$

素因数の和:2188

約数の個数: 36

約数和(自身を含む): 39921280

約数和(自身を除く): 20214252

約数列:

[1, 2, 4, 11, 19, 22, 38, 44, 76, 121, 209, 242, 418, 484, 836, 2143, 2299, 4286, 4598, 8572, 9196, 23573, 40717, 47146, 81434, 94292, 162868, 259303, 447887, 518606, 895774, 1037212, 1791548, 4926757, 9853514, 19707028]

約数ペア:

[(1, 19707028), (2, 9853514), (4, 4926757), (11, 1791548), (19, 1037212), (22, 895774), (38, 518606), (44, 447887), (76, 259303), (121, 162868), (209, 94292), (242, 81434), (418, 47146), (484, 40717), (836, 23573), (2143, 9196), (2299, 8572), (4286, 4598)]