18994105

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{107}}^1\times {\mathrm{2731}}^1$

素因数の和:2856

約数の個数: 16

約数和(自身を含む): 24784704

約数和(自身を除く): 5790599

約数列:

[1, 5, 13, 65, 107, 535, 1391, 2731, 6955, 13655, 35503, 177515, 292217, 1461085, 3798821, 18994105]

約数ペア:

[(1, 18994105), (5, 3798821), (13, 1461085), (65, 292217), (107, 177515), (535, 35503), (1391, 13655), (2731, 6955)]