28213784

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{419}}^1\times {\mathrm{443}}^1$

素因数の和:887

約数の個数: 32

約数和(自身を含む): 55944000

約数和(自身を除く): 27730216

約数列:

[1, 2, 4, 8, 19, 38, 76, 152, 419, 443, 838, 886, 1676, 1772, 3352, 3544, 7961, 8417, 15922, 16834, 31844, 33668, 63688, 67336, 185617, 371234, 742468, 1484936, 3526723, 7053446, 14106892, 28213784]

約数ペア:

[(1, 28213784), (2, 14106892), (4, 7053446), (8, 3526723), (19, 1484936), (38, 742468), (76, 371234), (152, 185617), (419, 67336), (443, 63688), (838, 33668), (886, 31844), (1676, 16834), (1772, 15922), (3352, 8417), (3544, 7961)]