20349250551

素因数分解:

$3^2\times 7^1\times {\mathrm{643}}^1\times {\mathrm{502339}}^1$

素因数の和:502995

約数の個数: 24

約数和(自身を含む): 33644723840

約数和(自身を除く): 13295473289

約数列:

[1, 3, 7, 9, 21, 63, 643, 1929, 4501, 5787, 13503, 40509, 502339, 1507017, 3516373, 4521051, 10549119, 31647357, 323003977, 969011931, 2261027839, 2907035793, 6783083517, 20349250551]

約数ペア:

[(1, 20349250551), (3, 6783083517), (7, 2907035793), (9, 2261027839), (21, 969011931), (63, 323003977), (643, 31647357), (1929, 10549119), (4501, 4521051), (5787, 3516373), (13503, 1507017), (40509, 502339)]