131867888

素因数分解:

$2^4\times {\mathrm{389}}^1\times {\mathrm{21187}}^1$

素因数の和:21584

約数の個数: 20

約数和(自身を含む): 256162920

約数和(自身を除く): 124295032

約数列:

[1, 2, 4, 8, 16, 389, 778, 1556, 3112, 6224, 21187, 42374, 84748, 169496, 338992, 8241743, 16483486, 32966972, 65933944, 131867888]

約数ペア:

[(1, 131867888), (2, 65933944), (4, 32966972), (8, 16483486), (16, 8241743), (389, 338992), (778, 169496), (1556, 84748), (3112, 42374), (6224, 21187)]