21691017

素因数分解:

$3^3\times {\mathrm{47}}^1\times {\mathrm{17093}}^1$

素因数の和:17149

約数の個数: 16

約数和(自身を含む): 32820480

約数和(自身を除く): 11129463

約数列:

[1, 3, 9, 27, 47, 141, 423, 1269, 17093, 51279, 153837, 461511, 803371, 2410113, 7230339, 21691017]

約数ペア:

[(1, 21691017), (3, 7230339), (9, 2410113), (27, 803371), (47, 461511), (141, 153837), (423, 51279), (1269, 17093)]