21630880

素因数分解:

$2^5\times 5^1\times {\mathrm{135193}}^1$

素因数の和:135208

約数の個数: 24

約数和(自身を含む): 51103332

約数和(自身を除く): 29472452

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 135193, 270386, 540772, 675965, 1081544, 1351930, 2163088, 2703860, 4326176, 5407720, 10815440, 21630880]

約数ペア:

[(1, 21630880), (2, 10815440), (4, 5407720), (5, 4326176), (8, 2703860), (10, 2163088), (16, 1351930), (20, 1081544), (32, 675965), (40, 540772), (80, 270386), (160, 135193)]