19994878

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{7411}}^1$

素因数の和:7503

約数の個数: 16

約数和(自身を含む): 32019840

約数和(自身を除く): 12024962

約数列:

[1, 2, 19, 38, 71, 142, 1349, 2698, 7411, 14822, 140809, 281618, 526181, 1052362, 9997439, 19994878]

約数ペア:

[(1, 19994878), (2, 9997439), (19, 1052362), (38, 526181), (71, 281618), (142, 140809), (1349, 14822), (2698, 7411)]