18920902

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{727}}^1$

素因数の和:773

約数の個数: 48

約数和(自身を含む): 38368512

約数和(自身を除く): 19447610

約数列:

[1, 2, 7, 11, 13, 14, 22, 26, 77, 91, 143, 154, 169, 182, 286, 338, 727, 1001, 1183, 1454, 1859, 2002, 2366, 3718, 5089, 7997, 9451, 10178, 13013, 15994, 18902, 26026, 55979, 66157, 103961, 111958, 122863, 132314, 207922, 245726, 727727, 860041, 1351493, 1455454, 1720082, 2702986, 9460451, 18920902]

約数ペア:

[(1, 18920902), (2, 9460451), (7, 2702986), (11, 1720082), (13, 1455454), (14, 1351493), (22, 860041), (26, 727727), (77, 245726), (91, 207922), (143, 132314), (154, 122863), (169, 111958), (182, 103961), (286, 66157), (338, 55979), (727, 26026), (1001, 18902), (1183, 15994), (1454, 13013), (1859, 10178), (2002, 9451), (2366, 7997), (3718, 5089)]