28686427

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{103}}^1\times {\mathrm{3617}}^1$

素因数の和:3738

約数の個数: 16

約数和(自身を含む): 36122112

約数和(自身を除く): 7435685

約数列:

[1, 7, 11, 77, 103, 721, 1133, 3617, 7931, 25319, 39787, 278509, 372551, 2607857, 4098061, 28686427]

約数ペア:

[(1, 28686427), (7, 4098061), (11, 2607857), (77, 372551), (103, 278509), (721, 39787), (1133, 25319), (3617, 7931)]