19906768

素因数分解:

$2^4\times 7^1\times {\mathrm{177739}}^1$

素因数の和:177754

約数の個数: 20

約数和(自身を含む): 44079520

約数和(自身を除く): 24172752

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 177739, 355478, 710956, 1244173, 1421912, 2488346, 2843824, 4976692, 9953384, 19906768]

約数ペア:

[(1, 19906768), (2, 9953384), (4, 4976692), (7, 2843824), (8, 2488346), (14, 1421912), (16, 1244173), (28, 710956), (56, 355478), (112, 177739)]