21954807

素因数分解:

$3^5\times 7^1\times {\mathrm{12907}}^1$

素因数の和:12929

約数の個数: 24

約数和(自身を含む): 37588096

約数和(自身を除く): 15633289

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 243, 567, 1701, 12907, 38721, 90349, 116163, 271047, 348489, 813141, 1045467, 2439423, 3136401, 7318269, 21954807]

約数ペア:

[(1, 21954807), (3, 7318269), (7, 3136401), (9, 2439423), (21, 1045467), (27, 813141), (63, 348489), (81, 271047), (189, 116163), (243, 90349), (567, 38721), (1701, 12907)]