19381985

素因数分解:

$5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{24077}}^1$

素因数の和:24112

約数の個数: 16

約数和(自身を含む): 27737856

約数和(自身を除く): 8355871

約数列:

[1, 5, 7, 23, 35, 115, 161, 805, 24077, 120385, 168539, 553771, 842695, 2768855, 3876397, 19381985]

約数ペア:

[(1, 19381985), (5, 3876397), (7, 2768855), (23, 842695), (35, 553771), (115, 168539), (161, 120385), (805, 24077)]