20998328

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{201907}}^1$

素因数の和:201926

約数の個数: 16

約数和(自身を含む): 42400680

約数和(自身を除く): 21402352

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 201907, 403814, 807628, 1615256, 2624791, 5249582, 10499164, 20998328]

約数ペア:

[(1, 20998328), (2, 10499164), (4, 5249582), (8, 2624791), (13, 1615256), (26, 807628), (52, 403814), (104, 201907)]