18420836

素因数分解:

$2^2\times 7^1\times {\mathrm{139}}^1\times {\mathrm{4733}}^1$

素因数の和:4883

約数の個数: 24

約数和(自身を含む): 37114560

約数和(自身を除く): 18693724

約数列:

[1, 2, 4, 7, 14, 28, 139, 278, 556, 973, 1946, 3892, 4733, 9466, 18932, 33131, 66262, 132524, 657887, 1315774, 2631548, 4605209, 9210418, 18420836]

約数ペア:

[(1, 18420836), (2, 9210418), (4, 4605209), (7, 2631548), (14, 1315774), (28, 657887), (139, 132524), (278, 66262), (556, 33131), (973, 18932), (1946, 9466), (3892, 4733)]