19003820

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{86381}}^1$

素因数の和:86401

約数の個数: 24

約数和(自身を含む): 43536528

約数和(自身を除く): 24532708

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 86381, 172762, 345524, 431905, 863810, 950191, 1727620, 1900382, 3800764, 4750955, 9501910, 19003820]

約数ペア:

[(1, 19003820), (2, 9501910), (4, 4750955), (5, 3800764), (10, 1900382), (11, 1727620), (20, 950191), (22, 863810), (44, 431905), (55, 345524), (110, 172762), (220, 86381)]