18873921

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{431}}^1\times {\mathrm{1327}}^1$

素因数の和:1772

約数の個数: 16

約数和(自身を含む): 27537408

約数和(自身を除く): 8663487

約数列:

[1, 3, 11, 33, 431, 1293, 1327, 3981, 4741, 14223, 14597, 43791, 571937, 1715811, 6291307, 18873921]

約数ペア:

[(1, 18873921), (3, 6291307), (11, 1715811), (33, 571937), (431, 43791), (1293, 14597), (1327, 14223), (3981, 4741)]