21001374

素因数分解:

$2^1\times 3^2\times {\mathrm{71}}^1\times {\mathrm{16433}}^1$

素因数の和:16512

約数の個数: 24

約数和(自身を含む): 46146672

約数和(自身を除く): 25145298

約数列:

[1, 2, 3, 6, 9, 18, 71, 142, 213, 426, 639, 1278, 16433, 32866, 49299, 98598, 147897, 295794, 1166743, 2333486, 3500229, 7000458, 10500687, 21001374]

約数ペア:

[(1, 21001374), (2, 10500687), (3, 7000458), (6, 3500229), (9, 2333486), (18, 1166743), (71, 295794), (142, 147897), (213, 98598), (426, 49299), (639, 32866), (1278, 16433)]