20187401913

素因数分解:

$3^2\times 7^1\times {\mathrm{320434951}}^1$

素因数の和:320434964

約数の個数: 12

約数和(自身を含む): 33325235008

約数和(自身を除く): 13137833095

約数列:

[1, 3, 7, 9, 21, 63, 320434951, 961304853, 2243044657, 2883914559, 6729133971, 20187401913]

約数ペア:

[(1, 20187401913), (3, 6729133971), (7, 2883914559), (9, 2243044657), (21, 961304853), (63, 320434951)]