18913917

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{173}}^1\times {\mathrm{3313}}^1$

素因数の和:3500

約数の個数: 16

約数和(自身を含む): 27678528

約数和(自身を除く): 8764611

約数列:

[1, 3, 11, 33, 173, 519, 1903, 3313, 5709, 9939, 36443, 109329, 573149, 1719447, 6304639, 18913917]

約数ペア:

[(1, 18913917), (3, 6304639), (11, 1719447), (33, 573149), (173, 109329), (519, 36443), (1903, 9939), (3313, 5709)]