215009739

素因数分解:

$3^2\times 7^1\times {\mathrm{853}}^1\times {\mathrm{4001}}^1$

素因数の和:4867

約数の個数: 24

約数和(自身を含む): 355441632

約数和(自身を除く): 140431893

約数列:

[1, 3, 7, 9, 21, 63, 853, 2559, 4001, 5971, 7677, 12003, 17913, 28007, 36009, 53739, 84021, 252063, 3412853, 10238559, 23889971, 30715677, 71669913, 215009739]

約数ペア:

[(1, 215009739), (3, 71669913), (7, 30715677), (9, 23889971), (21, 10238559), (63, 3412853), (853, 252063), (2559, 84021), (4001, 53739), (5971, 36009), (7677, 28007), (12003, 17913)]