261899631

素因数分解:

$3^2\times 7^1\times {\mathrm{311}}^1\times {\mathrm{13367}}^1$

素因数の和:13691

約数の個数: 24

約数和(自身を含む): 433764864

約数和(自身を除く): 171865233

約数列:

[1, 3, 7, 9, 21, 63, 311, 933, 2177, 2799, 6531, 13367, 19593, 40101, 93569, 120303, 280707, 842121, 4157137, 12471411, 29099959, 37414233, 87299877, 261899631]

約数ペア:

[(1, 261899631), (3, 87299877), (7, 37414233), (9, 29099959), (21, 12471411), (63, 4157137), (311, 842121), (933, 280707), (2177, 120303), (2799, 93569), (6531, 40101), (13367, 19593)]