20339319

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{521}}^1$

素因数の和:568

約数の個数: 48

約数和(自身を含む): 36681984

約数和(自身を除く): 16342665

約数列:

[1, 3, 7, 11, 13, 21, 33, 39, 77, 91, 143, 169, 231, 273, 429, 507, 521, 1001, 1183, 1563, 1859, 3003, 3549, 3647, 5577, 5731, 6773, 10941, 13013, 17193, 20319, 39039, 40117, 47411, 74503, 88049, 120351, 142233, 223509, 264147, 521521, 616343, 968539, 1564563, 1849029, 2905617, 6779773, 20339319]

約数ペア:

[(1, 20339319), (3, 6779773), (7, 2905617), (11, 1849029), (13, 1564563), (21, 968539), (33, 616343), (39, 521521), (77, 264147), (91, 223509), (143, 142233), (169, 120351), (231, 88049), (273, 74503), (429, 47411), (507, 40117), (521, 39039), (1001, 20319), (1183, 17193), (1563, 13013), (1859, 10941), (3003, 6773), (3549, 5731), (3647, 5577)]