21779847

素因数分解:

$3^5\times {\mathrm{47}}^1\times {\mathrm{1907}}^1$

素因数の和:1969

約数の個数: 24

約数和(自身を含む): 33336576

約数和(自身を除く): 11556729

約数列:

[1, 3, 9, 27, 47, 81, 141, 243, 423, 1269, 1907, 3807, 5721, 11421, 17163, 51489, 89629, 154467, 268887, 463401, 806661, 2419983, 7259949, 21779847]

約数ペア:

[(1, 21779847), (3, 7259949), (9, 2419983), (27, 806661), (47, 463401), (81, 268887), (141, 154467), (243, 89629), (423, 51489), (1269, 17163), (1907, 11421), (3807, 5721)]