81021921

素因数分解:

$3^1\times {\mathrm{163}}^1\times {\mathrm{223}}^1\times {\mathrm{743}}^1$

素因数の和:1132

約数の個数: 16

約数和(自身を含む): 109326336

約数和(自身を除く): 28304415

約数列:

[1, 3, 163, 223, 489, 669, 743, 2229, 36349, 109047, 121109, 165689, 363327, 497067, 27007307, 81021921]

約数ペア:

[(1, 81021921), (3, 27007307), (163, 497067), (223, 363327), (489, 165689), (669, 121109), (743, 109047), (2229, 36349)]