21479253

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{139}}^1\times {\mathrm{2711}}^1$

素因数の和:2872

約数の個数: 16

約数和(自身を含む): 30374400

約数和(自身を除く): 8895147

約数列:

[1, 3, 19, 57, 139, 417, 2641, 2711, 7923, 8133, 51509, 154527, 376829, 1130487, 7159751, 21479253]

約数ペア:

[(1, 21479253), (3, 7159751), (19, 1130487), (57, 376829), (139, 154527), (417, 51509), (2641, 8133), (2711, 7923)]