19516211

素因数分解:

${\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{653}}^1$

素因数の和:707

約数の個数: 24

約数和(自身を含む): 24354960

約数和(自身を除く): 4838749

約数列:

[1, 11, 13, 19, 121, 143, 209, 247, 653, 1573, 2299, 2717, 7183, 8489, 12407, 29887, 79013, 93379, 136477, 161291, 1027169, 1501247, 1774201, 19516211]

約数ペア:

[(1, 19516211), (11, 1774201), (13, 1501247), (19, 1027169), (121, 161291), (143, 136477), (209, 93379), (247, 79013), (653, 29887), (1573, 12407), (2299, 8489), (2717, 7183)]