18908656

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{90907}}^1$

素因数の和:90928

約数の個数: 20

約数和(自身を含む): 39454072

約数和(自身を除く): 20545416

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 90907, 181814, 363628, 727256, 1181791, 1454512, 2363582, 4727164, 9454328, 18908656]

約数ペア:

[(1, 18908656), (2, 9454328), (4, 4727164), (8, 2363582), (13, 1454512), (16, 1181791), (26, 727256), (52, 363628), (104, 181814), (208, 90907)]