19780897

素因数分解:

${\mathrm{23}}^2\times {\mathrm{61}}^1\times {\mathrm{613}}^1$

素因数の和:720

約数の個数: 12

約数和(自身を含む): 21051604

約数和(自身を除く): 1270707

約数列:

[1, 23, 61, 529, 613, 1403, 14099, 32269, 37393, 324277, 860039, 19780897]

約数ペア:

[(1, 19780897), (23, 860039), (61, 324277), (529, 37393), (613, 32269), (1403, 14099)]