28870282

素因数分解:

$2^1\times 7^1\times {\mathrm{103}}^1\times {\mathrm{20021}}^1$

素因数の和:20133

約数の個数: 16

約数和(自身を含む): 49974912

約数和(自身を除く): 21104630

約数列:

[1, 2, 7, 14, 103, 206, 721, 1442, 20021, 40042, 140147, 280294, 2062163, 4124326, 14435141, 28870282]

約数ペア:

[(1, 28870282), (2, 14435141), (7, 4124326), (14, 2062163), (103, 280294), (206, 140147), (721, 40042), (1442, 20021)]