21309339

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{5827}}^1$

素因数の和:5906

約数の個数: 16

約数和(自身を含む): 30212352

約数和(自身を除く): 8903013

約数列:

[1, 3, 23, 53, 69, 159, 1219, 3657, 5827, 17481, 134021, 308831, 402063, 926493, 7103113, 21309339]

約数ペア:

[(1, 21309339), (3, 7103113), (23, 926493), (53, 402063), (69, 308831), (159, 134021), (1219, 17481), (3657, 5827)]