21157826

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{307}}^1\times {\mathrm{2027}}^1$

素因数の和:2353

約数の個数: 16

約数和(自身を含む): 33729696

約数和(自身を除く): 12571870

約数列:

[1, 2, 17, 34, 307, 614, 2027, 4054, 5219, 10438, 34459, 68918, 622289, 1244578, 10578913, 21157826]

約数ペア:

[(1, 21157826), (2, 10578913), (17, 1244578), (34, 622289), (307, 68918), (614, 34459), (2027, 10438), (4054, 5219)]