21894669

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{2099}}^1$

素因数の和:2185

約数の個数: 24

約数和(自身を含む): 33852000

約数和(自身を除く): 11957331

約数列:

[1, 3, 9, 19, 57, 61, 171, 183, 549, 1159, 2099, 3477, 6297, 10431, 18891, 39881, 119643, 128039, 358929, 384117, 1152351, 2432741, 7298223, 21894669]

約数ペア:

[(1, 21894669), (3, 7298223), (9, 2432741), (19, 1152351), (57, 384117), (61, 358929), (171, 128039), (183, 119643), (549, 39881), (1159, 18891), (2099, 10431), (3477, 6297)]