142931971

素因数分解:

$7^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{67}}^1\times {\mathrm{197}}^1$

素因数の和:308

約数の個数: 48

約数和(自身を含む): 193396896

約数和(自身を除く): 50464925

約数列:

[1, 7, 13, 17, 49, 67, 91, 119, 197, 221, 469, 637, 833, 871, 1139, 1379, 1547, 2561, 3283, 3349, 6097, 7973, 9653, 10829, 13199, 14807, 17927, 23443, 42679, 43537, 55811, 92393, 103649, 125489, 164101, 171587, 224383, 304759, 646751, 725543, 1201109, 1570681, 2133313, 2916979, 8407763, 10994767, 20418853, 142931971]

約数ペア:

[(1, 142931971), (7, 20418853), (13, 10994767), (17, 8407763), (49, 2916979), (67, 2133313), (91, 1570681), (119, 1201109), (197, 725543), (221, 646751), (469, 304759), (637, 224383), (833, 171587), (871, 164101), (1139, 125489), (1379, 103649), (1547, 92393), (2561, 55811), (3283, 43537), (3349, 42679), (6097, 23443), (7973, 17927), (9653, 14807), (10829, 13199)]