21889160

素因数分解:

$2^3\times 5^1\times {\mathrm{547229}}^1$

素因数の和:547240

約数の個数: 16

約数和(自身を含む): 49250700

約数和(自身を除く): 27361540

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 547229, 1094458, 2188916, 2736145, 4377832, 5472290, 10944580, 21889160]

約数ペア:

[(1, 21889160), (2, 10944580), (4, 5472290), (5, 4377832), (8, 2736145), (10, 2188916), (20, 1094458), (40, 547229)]