28987203

素因数分解:

$3^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{683}}^1$

素因数の和:783

約数の個数: 32

約数和(自身を含む): 46227456

約数和(自身を除く): 17240253

約数列:

[1, 3, 7, 21, 43, 47, 129, 141, 301, 329, 683, 903, 987, 2021, 2049, 4781, 6063, 14147, 14343, 29369, 32101, 42441, 88107, 96303, 205583, 224707, 616749, 674121, 1380343, 4141029, 9662401, 28987203]

約数ペア:

[(1, 28987203), (3, 9662401), (7, 4141029), (21, 1380343), (43, 674121), (47, 616749), (129, 224707), (141, 205583), (301, 96303), (329, 88107), (683, 42441), (903, 32101), (987, 29369), (2021, 14343), (2049, 14147), (4781, 6063)]