21959728

素因数分解:

$2^4\times 7^1\times {\mathrm{29}}^1\times {\mathrm{6761}}^1$

素因数の和:6805

約数の個数: 40

約数和(自身を含む): 50309280

約数和(自身を除く): 28349552

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 29, 56, 58, 112, 116, 203, 232, 406, 464, 812, 1624, 3248, 6761, 13522, 27044, 47327, 54088, 94654, 108176, 189308, 196069, 378616, 392138, 757232, 784276, 1372483, 1568552, 2744966, 3137104, 5489932, 10979864, 21959728]

約数ペア:

[(1, 21959728), (2, 10979864), (4, 5489932), (7, 3137104), (8, 2744966), (14, 1568552), (16, 1372483), (28, 784276), (29, 757232), (56, 392138), (58, 378616), (112, 196069), (116, 189308), (203, 108176), (232, 94654), (406, 54088), (464, 47327), (812, 27044), (1624, 13522), (3248, 6761)]