21889960

素因数分解:

$2^3\times 5^1\times {\mathrm{547249}}^1$

素因数の和:547260

約数の個数: 16

約数和(自身を含む): 49252500

約数和(自身を除く): 27362540

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 547249, 1094498, 2188996, 2736245, 4377992, 5472490, 10944980, 21889960]

約数ペア:

[(1, 21889960), (2, 10944980), (4, 5472490), (5, 4377992), (8, 2736245), (10, 2188996), (20, 1094498), (40, 547249)]