28218113

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{21557}}^1$

素因数の和:21592

約数の個数: 16

約数和(自身を含む): 37252224

約数和(自身を除く): 9034111

約数列:

[1, 7, 11, 17, 77, 119, 187, 1309, 21557, 150899, 237127, 366469, 1659889, 2565283, 4031159, 28218113]

約数ペア:

[(1, 28218113), (7, 4031159), (11, 2565283), (17, 1659889), (77, 366469), (119, 237127), (187, 150899), (1309, 21557)]