19857299

素因数分解:

$7^3\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{277}}^1$

素因数の和:328

約数の個数: 32

約数和(自身を含む): 26688000

約数和(自身を除く): 6830701

約数列:

[1, 7, 11, 19, 49, 77, 133, 209, 277, 343, 539, 931, 1463, 1939, 3047, 3773, 5263, 6517, 10241, 13573, 21329, 36841, 57893, 71687, 95011, 149303, 257887, 405251, 1045121, 1805209, 2836757, 19857299]

約数ペア:

[(1, 19857299), (7, 2836757), (11, 1805209), (19, 1045121), (49, 405251), (77, 257887), (133, 149303), (209, 95011), (277, 71687), (343, 57893), (539, 36841), (931, 21329), (1463, 13573), (1939, 10241), (3047, 6517), (3773, 5263)]