19984378

素因数分解:

$2^1\times {\mathrm{23}}^1\times {\mathrm{193}}^1\times {\mathrm{2251}}^1$

素因数の和:2469

約数の個数: 16

約数和(自身を含む): 31455936

約数和(自身を除く): 11471558

約数列:

[1, 2, 23, 46, 193, 386, 2251, 4439, 4502, 8878, 51773, 103546, 434443, 868886, 9992189, 19984378]

約数ペア:

[(1, 19984378), (2, 9992189), (23, 868886), (46, 434443), (193, 103546), (386, 51773), (2251, 8878), (4439, 4502)]