19728933

素因数分解:

$3^1\times 7^1\times {\mathrm{409}}^1\times {\mathrm{2297}}^1$

素因数の和:2716

約数の個数: 16

約数和(自身を含む): 30149760

約数和(自身を除く): 10420827

約数列:

[1, 3, 7, 21, 409, 1227, 2297, 2863, 6891, 8589, 16079, 48237, 939473, 2818419, 6576311, 19728933]

約数ペア:

[(1, 19728933), (3, 6576311), (7, 2818419), (21, 939473), (409, 48237), (1227, 16079), (2297, 8589), (2863, 6891)]