15771728

素因数分解:

$2^4\times 7^2\times {\mathrm{20117}}^1$

素因数の和:20139

約数の個数: 30

約数和(自身を含む): 35548506

約数和(自身を除く): 19776778

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 49, 56, 98, 112, 196, 392, 784, 20117, 40234, 80468, 140819, 160936, 281638, 321872, 563276, 985733, 1126552, 1971466, 2253104, 3942932, 7885864, 15771728]

約数ペア:

[(1, 15771728), (2, 7885864), (4, 3942932), (7, 2253104), (8, 1971466), (14, 1126552), (16, 985733), (28, 563276), (49, 321872), (56, 281638), (98, 160936), (112, 140819), (196, 80468), (392, 40234), (784, 20117)]