19992049

素因数分解:

$7^2\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{1279}}^1$

素因数の和:1333

約数の個数: 24

約数和(自身を含む): 26265600

約数和(自身を除く): 6273551

約数列:

[1, 7, 11, 29, 49, 77, 203, 319, 539, 1279, 1421, 2233, 8953, 14069, 15631, 37091, 62671, 98483, 259637, 408001, 689381, 1817459, 2856007, 19992049]

約数ペア:

[(1, 19992049), (7, 2856007), (11, 1817459), (29, 689381), (49, 408001), (77, 259637), (203, 98483), (319, 62671), (539, 37091), (1279, 15631), (1421, 14069), (2233, 8953)]