21431852

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{337}}^1\times {\mathrm{1223}}^1$

素因数の和:1577

約数の個数: 24

約数和(自身を含む): 40543776

約数和(自身を除く): 19111924

約数列:

[1, 2, 4, 13, 26, 52, 337, 674, 1223, 1348, 2446, 4381, 4892, 8762, 15899, 17524, 31798, 63596, 412151, 824302, 1648604, 5357963, 10715926, 21431852]

約数ペア:

[(1, 21431852), (2, 10715926), (4, 5357963), (13, 1648604), (26, 824302), (52, 412151), (337, 63596), (674, 31798), (1223, 17524), (1348, 15899), (2446, 8762), (4381, 4892)]