80785719

素因数分解:

$3^2\times 7^1\times {\mathrm{67}}^1\times {\mathrm{19139}}^1$

素因数の和:19219

約数の個数: 24

約数和(自身を含む): 135358080

約数和(自身を除く): 54572361

約数列:

[1, 3, 7, 9, 21, 63, 67, 201, 469, 603, 1407, 4221, 19139, 57417, 133973, 172251, 401919, 1205757, 1282313, 3846939, 8976191, 11540817, 26928573, 80785719]

約数ペア:

[(1, 80785719), (3, 26928573), (7, 11540817), (9, 8976191), (21, 3846939), (63, 1282313), (67, 1205757), (201, 401919), (469, 172251), (603, 133973), (1407, 57417), (4221, 19139)]