21968085

素因数分解:

$3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{77081}}^1$

素因数の和:77108

約数の個数: 16

約数和(自身を含む): 36999360

約数和(自身を除く): 15031275

約数列:

[1, 3, 5, 15, 19, 57, 95, 285, 77081, 231243, 385405, 1156215, 1464539, 4393617, 7322695, 21968085]

約数ペア:

[(1, 21968085), (3, 7322695), (5, 4393617), (15, 1464539), (19, 1156215), (57, 385405), (95, 231243), (285, 77081)]