18723856

素因数分解:

$2^4\times {\mathrm{139}}^1\times {\mathrm{8419}}^1$

素因数の和:8566

約数の個数: 20

約数和(自身を含む): 36542800

約数和(自身を除く): 17818944

約数列:

[1, 2, 4, 8, 16, 139, 278, 556, 1112, 2224, 8419, 16838, 33676, 67352, 134704, 1170241, 2340482, 4680964, 9361928, 18723856]

約数ペア:

[(1, 18723856), (2, 9361928), (4, 4680964), (8, 2340482), (16, 1170241), (139, 134704), (278, 67352), (556, 33676), (1112, 16838), (2224, 8419)]