20865436430

素因数分解:

$2^1\times 5^1\times {\mathrm{1493}}^1\times {\mathrm{1397551}}^1$

素因数の和:1399051

約数の個数: 16

約数和(自身を含む): 37582968384

約数和(自身を除く): 16717531954

約数列:

[1, 2, 5, 10, 1493, 2986, 7465, 14930, 1397551, 2795102, 6987755, 13975510, 2086543643, 4173087286, 10432718215, 20865436430]

約数ペア:

[(1, 20865436430), (2, 10432718215), (5, 4173087286), (10, 2086543643), (1493, 13975510), (2986, 6987755), (7465, 2795102), (14930, 1397551)]