21084320

素因数分解:

$2^5\times 5^1\times {\mathrm{131777}}^1$

素因数の和:131792

約数の個数: 24

約数和(自身を含む): 49812084

約数和(自身を除く): 28727764

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 131777, 263554, 527108, 658885, 1054216, 1317770, 2108432, 2635540, 4216864, 5271080, 10542160, 21084320]

約数ペア:

[(1, 21084320), (2, 10542160), (4, 5271080), (5, 4216864), (8, 2635540), (10, 2108432), (16, 1317770), (20, 1054216), (32, 658885), (40, 527108), (80, 263554), (160, 131777)]