21988587

素因数分解:

$3^1\times {\mathrm{41}}^1\times {\mathrm{53}}^1\times {\mathrm{3373}}^1$

素因数の和:3470

約数の個数: 16

約数和(自身を含む): 30608928

約数和(自身を除く): 8620341

約数列:

[1, 3, 41, 53, 123, 159, 2173, 3373, 6519, 10119, 138293, 178769, 414879, 536307, 7329529, 21988587]

約数ペア:

[(1, 21988587), (3, 7329529), (41, 536307), (53, 414879), (123, 178769), (159, 138293), (2173, 10119), (3373, 6519)]