12638857

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{163}}^1$

素因数の和:253

約数の個数: 32

約数和(自身を含む): 17003520

約数和(自身を除く): 4364663

約数列:

[1, 7, 11, 19, 53, 77, 133, 163, 209, 371, 583, 1007, 1141, 1463, 1793, 3097, 4081, 7049, 8639, 11077, 12551, 21679, 34067, 60473, 77539, 95029, 164141, 238469, 665203, 1148987, 1805551, 12638857]

約数ペア:

[(1, 12638857), (7, 1805551), (11, 1148987), (19, 665203), (53, 238469), (77, 164141), (133, 95029), (163, 77539), (209, 60473), (371, 34067), (583, 21679), (1007, 12551), (1141, 11077), (1463, 8639), (1793, 7049), (3097, 4081)]