21796805

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{347}}^1\times {\mathrm{739}}^1$

素因数の和:1108

約数の個数: 16

約数和(自身を含む): 27812160

約数和(自身を除く): 6015355

約数列:

[1, 5, 17, 85, 347, 739, 1735, 3695, 5899, 12563, 29495, 62815, 256433, 1282165, 4359361, 21796805]

約数ペア:

[(1, 21796805), (5, 4359361), (17, 1282165), (85, 256433), (347, 62815), (739, 29495), (1735, 12563), (3695, 5899)]