20810804

素因数分解:

$2^2\times 7^1\times {\mathrm{193}}^1\times {\mathrm{3851}}^1$

素因数の和:4055

約数の個数: 24

約数和(自身を含む): 41848128

約数和(自身を除く): 21037324

約数列:

[1, 2, 4, 7, 14, 28, 193, 386, 772, 1351, 2702, 3851, 5404, 7702, 15404, 26957, 53914, 107828, 743243, 1486486, 2972972, 5202701, 10405402, 20810804]

約数ペア:

[(1, 20810804), (2, 10405402), (4, 5202701), (7, 2972972), (14, 1486486), (28, 743243), (193, 107828), (386, 53914), (772, 26957), (1351, 15404), (2702, 7702), (3851, 5404)]