19897976

素因数分解:

$2^3\times 7^1\times {\mathrm{355321}}^1$

素因数の和:355334

約数の個数: 16

約数和(自身を含む): 42638640

約数和(自身を除く): 22740664

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 355321, 710642, 1421284, 2487247, 2842568, 4974494, 9948988, 19897976]

約数ペア:

[(1, 19897976), (2, 9948988), (4, 4974494), (7, 2842568), (8, 2487247), (14, 1421284), (28, 710642), (56, 355321)]