19784479

素因数分解:

${\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{4463}}^1$

素因数の和:4518

約数の個数: 16

約数和(自身を含む): 23998464

約数和(自身を除く): 4213985

約数列:

[1, 11, 13, 31, 143, 341, 403, 4433, 4463, 49093, 58019, 138353, 638209, 1521883, 1798589, 19784479]

約数ペア:

[(1, 19784479), (11, 1798589), (13, 1521883), (31, 638209), (143, 138353), (341, 58019), (403, 49093), (4433, 4463)]