28267379

素因数分解:

$7^1\times {\mathrm{17}}^2\times {\mathrm{89}}^1\times {\mathrm{157}}^1$

素因数の和:287

約数の個数: 24

約数和(自身を含む): 34924320

約数和(自身を除く): 6656941

約数列:

[1, 7, 17, 89, 119, 157, 289, 623, 1099, 1513, 2023, 2669, 10591, 13973, 18683, 25721, 45373, 97811, 180047, 237541, 317611, 1662787, 4038197, 28267379]

約数ペア:

[(1, 28267379), (7, 4038197), (17, 1662787), (89, 317611), (119, 237541), (157, 180047), (289, 97811), (623, 45373), (1099, 25721), (1513, 18683), (2023, 13973), (2669, 10591)]