1681628

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{443}}^1$

素因数の和:533

約数の個数: 24

約数和(自身を含む): 3219888

約数和(自身を除く): 1538260

約数列:

[1, 2, 4, 13, 26, 52, 73, 146, 292, 443, 886, 949, 1772, 1898, 3796, 5759, 11518, 23036, 32339, 64678, 129356, 420407, 840814, 1681628]

約数ペア:

[(1, 1681628), (2, 840814), (4, 420407), (13, 129356), (26, 64678), (52, 32339), (73, 23036), (146, 11518), (292, 5759), (443, 3796), (886, 1898), (949, 1772)]