13906557

素因数分解:

$3^2\times 7^1\times {\mathrm{71}}^1\times {\mathrm{3109}}^1$

素因数の和:3193

約数の個数: 24

約数和(自身を含む): 23287680

約数和(自身を除く): 9381123

約数列:

[1, 3, 7, 9, 21, 63, 71, 213, 497, 639, 1491, 3109, 4473, 9327, 21763, 27981, 65289, 195867, 220739, 662217, 1545173, 1986651, 4635519, 13906557]

約数ペア:

[(1, 13906557), (3, 4635519), (7, 1986651), (9, 1545173), (21, 662217), (63, 220739), (71, 195867), (213, 65289), (497, 27981), (639, 21763), (1491, 9327), (3109, 4473)]