19825791

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{149}}^1\times {\mathrm{2609}}^1$

素因数の和:2778

約数の個数: 16

約数和(自身を含む): 28188000

約数和(自身を除く): 8362209

約数列:

[1, 3, 17, 51, 149, 447, 2533, 2609, 7599, 7827, 44353, 133059, 388741, 1166223, 6608597, 19825791]

約数ペア:

[(1, 19825791), (3, 6608597), (17, 1166223), (51, 388741), (149, 133059), (447, 44353), (2533, 7827), (2609, 7599)]