20684217

素因数分解:

$3^1\times {\mathrm{19}}^2\times {\mathrm{71}}^1\times {\mathrm{269}}^1$

素因数の和:381

約数の個数: 24

約数和(自身を含む): 29626560

約数和(自身を除く): 8942343

約数列:

[1, 3, 19, 57, 71, 213, 269, 361, 807, 1083, 1349, 4047, 5111, 15333, 19099, 25631, 57297, 76893, 97109, 291327, 362881, 1088643, 6894739, 20684217]

約数ペア:

[(1, 20684217), (3, 6894739), (19, 1088643), (57, 362881), (71, 291327), (213, 97109), (269, 76893), (361, 57297), (807, 25631), (1083, 19099), (1349, 15333), (4047, 5111)]