19943728

素因数分解:

$2^4\times 7^1\times {\mathrm{178069}}^1$

素因数の和:178084

約数の個数: 20

約数和(自身を含む): 44161360

約数和(自身を除く): 24217632

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 178069, 356138, 712276, 1246483, 1424552, 2492966, 2849104, 4985932, 9971864, 19943728]

約数ペア:

[(1, 19943728), (2, 9971864), (4, 4985932), (7, 2849104), (8, 2492966), (14, 1424552), (16, 1246483), (28, 712276), (56, 356138), (112, 178069)]