16680385

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{2473}}^1$

素因数の和:2568

約数の個数: 16

約数和(自身を含む): 21375360

約数和(自身を除く): 4694975

約数列:

[1, 5, 19, 71, 95, 355, 1349, 2473, 6745, 12365, 46987, 175583, 234935, 877915, 3336077, 16680385]

約数ペア:

[(1, 16680385), (5, 3336077), (19, 877915), (71, 234935), (95, 175583), (355, 46987), (1349, 12365), (2473, 6745)]