2809807

素因数分解:

$7^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{401}}^1$

素因数の和:439

約数の個数: 24

約数和(自身を含む): 3849552

約数和(自身を除く): 1039745

約数列:

[1, 7, 11, 13, 49, 77, 91, 143, 401, 539, 637, 1001, 2807, 4411, 5213, 7007, 19649, 30877, 36491, 57343, 216139, 255437, 401401, 2809807]

約数ペア:

[(1, 2809807), (7, 401401), (11, 255437), (13, 216139), (49, 57343), (77, 36491), (91, 30877), (143, 19649), (401, 7007), (539, 5213), (637, 4411), (1001, 2807)]