28991307

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{103}}^1\times {\mathrm{5519}}^1$

素因数の和:5642

約数の個数: 16

約数和(自身を含む): 41333760

約数和(自身を除く): 12342453

約数列:

[1, 3, 17, 51, 103, 309, 1751, 5253, 5519, 16557, 93823, 281469, 568457, 1705371, 9663769, 28991307]

約数ペア:

[(1, 28991307), (3, 9663769), (17, 1705371), (51, 568457), (103, 281469), (309, 93823), (1751, 16557), (5253, 5519)]