21391144

素因数分解:

$2^3\times {\mathrm{839}}^1\times {\mathrm{3187}}^1$

素因数の和:4032

約数の個数: 16

約数和(自身を含む): 40168800

約数和(自身を除く): 18777656

約数列:

[1, 2, 4, 8, 839, 1678, 3187, 3356, 6374, 6712, 12748, 25496, 2673893, 5347786, 10695572, 21391144]

約数ペア:

[(1, 21391144), (2, 10695572), (4, 5347786), (8, 2673893), (839, 25496), (1678, 12748), (3187, 6712), (3356, 6374)]