25541649

素因数分解:

$3^4\times 7^1\times {\mathrm{107}}^1\times {\mathrm{421}}^1$

素因数の和:547

約数の個数: 40

約数和(自身を含む): 44117568

約数和(自身を除く): 18575919

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 107, 189, 321, 421, 567, 749, 963, 1263, 2247, 2889, 2947, 3789, 6741, 8667, 8841, 11367, 20223, 26523, 34101, 45047, 60669, 79569, 135141, 238707, 315329, 405423, 945987, 1216269, 2837961, 3648807, 8513883, 25541649]

約数ペア:

[(1, 25541649), (3, 8513883), (7, 3648807), (9, 2837961), (21, 1216269), (27, 945987), (63, 405423), (81, 315329), (107, 238707), (189, 135141), (321, 79569), (421, 60669), (567, 45047), (749, 34101), (963, 26523), (1263, 20223), (2247, 11367), (2889, 8841), (2947, 8667), (3789, 6741)]