20488587

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{1979}}^1$

素因数の和:2035

約数の個数: 32

約数和(自身を含む): 34214400

約数和(自身を除く): 13725813

約数列:

[1, 3, 7, 17, 21, 29, 51, 87, 119, 203, 357, 493, 609, 1479, 1979, 3451, 5937, 10353, 13853, 33643, 41559, 57391, 100929, 172173, 235501, 401737, 706503, 975647, 1205211, 2926941, 6829529, 20488587]

約数ペア:

[(1, 20488587), (3, 6829529), (7, 2926941), (17, 1205211), (21, 975647), (29, 706503), (51, 401737), (87, 235501), (119, 172173), (203, 100929), (357, 57391), (493, 41559), (609, 33643), (1479, 13853), (1979, 10353), (3451, 5937)]