21900261

素因数分解:

$3^1\times {\mathrm{47}}^1\times {\mathrm{127}}^1\times {\mathrm{1223}}^1$

素因数の和:1400

約数の個数: 16

約数和(自身を含む): 30081024

約数和(自身を除く): 8180763

約数列:

[1, 3, 47, 127, 141, 381, 1223, 3669, 5969, 17907, 57481, 155321, 172443, 465963, 7300087, 21900261]

約数ペア:

[(1, 21900261), (3, 7300087), (47, 465963), (127, 172443), (141, 155321), (381, 57481), (1223, 17907), (3669, 5969)]