28762029

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{103}}^1$

素因数の和:222

約数の個数: 48

約数和(自身を含む): 46725120

約数和(自身を除く): 17963091

約数列:

[1, 3, 9, 19, 23, 57, 69, 71, 103, 171, 207, 213, 309, 437, 639, 927, 1311, 1349, 1633, 1957, 2369, 3933, 4047, 4899, 5871, 7107, 7313, 12141, 14697, 17613, 21321, 21939, 31027, 45011, 65817, 93081, 135033, 138947, 168199, 279243, 405099, 416841, 504597, 1250523, 1513791, 3195781, 9587343, 28762029]

約数ペア:

[(1, 28762029), (3, 9587343), (9, 3195781), (19, 1513791), (23, 1250523), (57, 504597), (69, 416841), (71, 405099), (103, 279243), (171, 168199), (207, 138947), (213, 135033), (309, 93081), (437, 65817), (639, 45011), (927, 31027), (1311, 21939), (1349, 21321), (1633, 17613), (1957, 14697), (2369, 12141), (3933, 7313), (4047, 7107), (4899, 5871)]