21093478

素因数分解:

$2^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{947}}^1$

素因数の和:1036

約数の個数: 32

約数和(自身を含む): 38041344

約数和(自身を除く): 16947866

約数列:

[1, 2, 7, 14, 37, 43, 74, 86, 259, 301, 518, 602, 947, 1591, 1894, 3182, 6629, 11137, 13258, 22274, 35039, 40721, 70078, 81442, 245273, 285047, 490546, 570094, 1506677, 3013354, 10546739, 21093478]

約数ペア:

[(1, 21093478), (2, 10546739), (7, 3013354), (14, 1506677), (37, 570094), (43, 490546), (74, 285047), (86, 245273), (259, 81442), (301, 70078), (518, 40721), (602, 35039), (947, 22274), (1591, 13258), (1894, 11137), (3182, 6629)]