215909993

素因数分解:

${\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{347}}^1\times {\mathrm{2081}}^1$

素因数の和:2464

約数の個数: 16

約数和(自身を含む): 243444096

約数和(自身を除く): 27534103

約数列:

[1, 13, 23, 299, 347, 2081, 4511, 7981, 27053, 47863, 103753, 622219, 722107, 9387391, 16608461, 215909993]

約数ペア:

[(1, 215909993), (13, 16608461), (23, 9387391), (299, 722107), (347, 622219), (2081, 103753), (4511, 47863), (7981, 27053)]