21125432

素因数分解:

$2^3\times {\mathrm{1321}}^1\times {\mathrm{1999}}^1$

素因数の和:3326

約数の個数: 16

約数和(自身を含む): 39660000

約数和(自身を除く): 18534568

約数列:

[1, 2, 4, 8, 1321, 1999, 2642, 3998, 5284, 7996, 10568, 15992, 2640679, 5281358, 10562716, 21125432]

約数ペア:

[(1, 21125432), (2, 10562716), (4, 5281358), (8, 2640679), (1321, 15992), (1999, 10568), (2642, 7996), (3998, 5284)]