19807347

素因数分解:

$3^1\times 7^1\times {\mathrm{23}}^2\times {\mathrm{1783}}^1$

素因数の和:1839

約数の個数: 24

約数和(自身を含む): 31569664

約数和(自身を除く): 11762317

約数列:

[1, 3, 7, 21, 23, 69, 161, 483, 529, 1587, 1783, 3703, 5349, 11109, 12481, 37443, 41009, 123027, 287063, 861189, 943207, 2829621, 6602449, 19807347]

約数ペア:

[(1, 19807347), (3, 6602449), (7, 2829621), (21, 943207), (23, 861189), (69, 287063), (161, 123027), (483, 41009), (529, 37443), (1587, 12481), (1783, 11109), (3703, 5349)]