27751899

素因数分解:

$3^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{73}}^1\times {\mathrm{421}}^1$

素因数の和:547

約数の個数: 32

約数和(自身を含む): 43969024

約数和(自身を除く): 16217125

約数列:

[1, 3, 7, 21, 43, 73, 129, 219, 301, 421, 511, 903, 1263, 1533, 2947, 3139, 8841, 9417, 18103, 21973, 30733, 54309, 65919, 92199, 126721, 215131, 380163, 645393, 1321519, 3964557, 9250633, 27751899]

約数ペア:

[(1, 27751899), (3, 9250633), (7, 3964557), (21, 1321519), (43, 645393), (73, 380163), (129, 215131), (219, 126721), (301, 92199), (421, 65919), (511, 54309), (903, 30733), (1263, 21973), (1533, 18103), (2947, 9417), (3139, 8841)]