20398719

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{59}}^1\times {\mathrm{10477}}^1$

素因数の和:10550

約数の個数: 16

約数和(自身を含む): 30176640

約数和(自身を除く): 9777921

約数列:

[1, 3, 11, 33, 59, 177, 649, 1947, 10477, 31431, 115247, 345741, 618143, 1854429, 6799573, 20398719]

約数ペア:

[(1, 20398719), (3, 6799573), (11, 1854429), (33, 618143), (59, 345741), (177, 115247), (649, 31431), (1947, 10477)]