19686849

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{1949}}^1$

素因数の和:2009

約数の個数: 32

約数和(自身を含む): 33196800

約数和(自身を除く): 13509951

約数列:

[1, 3, 7, 13, 21, 37, 39, 91, 111, 259, 273, 481, 777, 1443, 1949, 3367, 5847, 10101, 13643, 25337, 40929, 72113, 76011, 177359, 216339, 504791, 532077, 937469, 1514373, 2812407, 6562283, 19686849]

約数ペア:

[(1, 19686849), (3, 6562283), (7, 2812407), (13, 1514373), (21, 937469), (37, 532077), (39, 504791), (91, 216339), (111, 177359), (259, 76011), (273, 72113), (481, 40929), (777, 25337), (1443, 13643), (1949, 10101), (3367, 5847)]