19713928

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{131}}^1\times {\mathrm{1447}}^1$

素因数の和:1597

約数の個数: 32

約数和(自身を含む): 40138560

約数和(自身を除く): 20424632

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 131, 262, 524, 1048, 1447, 1703, 2894, 3406, 5788, 6812, 11576, 13624, 18811, 37622, 75244, 150488, 189557, 379114, 758228, 1516456, 2464241, 4928482, 9856964, 19713928]

約数ペア:

[(1, 19713928), (2, 9856964), (4, 4928482), (8, 2464241), (13, 1516456), (26, 758228), (52, 379114), (104, 189557), (131, 150488), (262, 75244), (524, 37622), (1048, 18811), (1447, 13624), (1703, 11576), (2894, 6812), (3406, 5788)]