21183757

素因数分解:

$7^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{2381}}^1$

素因数の和:2460

約数の個数: 16

約数和(自身を含む): 25611264

約数和(自身を除く): 4427507

約数列:

[1, 7, 31, 41, 217, 287, 1271, 2381, 8897, 16667, 73811, 97621, 516677, 683347, 3026251, 21183757]

約数ペア:

[(1, 21183757), (7, 3026251), (31, 683347), (41, 516677), (217, 97621), (287, 73811), (1271, 16667), (2381, 8897)]