21806210

素因数分解:

$2^1\times 5^1\times {\mathrm{307}}^1\times {\mathrm{7103}}^1$

素因数の和:7417

約数の個数: 16

約数和(自身を含む): 39384576

約数和(自身を除く): 17578366

約数列:

[1, 2, 5, 10, 307, 614, 1535, 3070, 7103, 14206, 35515, 71030, 2180621, 4361242, 10903105, 21806210]

約数ペア:

[(1, 21806210), (2, 10903105), (5, 4361242), (10, 2180621), (307, 71030), (614, 35515), (1535, 14206), (3070, 7103)]