19440519

素因数分解:

$3^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{67}}^1\times {\mathrm{337}}^1$

素因数の和:455

約数の個数: 32

約数和(自身を含む): 30890496

約数和(自身を除く): 11449977

約数列:

[1, 3, 7, 21, 41, 67, 123, 201, 287, 337, 469, 861, 1011, 1407, 2359, 2747, 7077, 8241, 13817, 19229, 22579, 41451, 57687, 67737, 96719, 158053, 290157, 474159, 925739, 2777217, 6480173, 19440519]

約数ペア:

[(1, 19440519), (3, 6480173), (7, 2777217), (21, 925739), (41, 474159), (67, 290157), (123, 158053), (201, 96719), (287, 67737), (337, 57687), (469, 41451), (861, 22579), (1011, 19229), (1407, 13817), (2359, 8241), (2747, 7077)]