18969269907

素因数分解:

$3^1\times 7^1\times {\mathrm{103}}^1\times {\mathrm{163}}^1\times {\mathrm{173}}^1\times {\mathrm{311}}^1$

素因数の和:760

約数の個数: 64

約数和(自身を含む): 29629956096

約数和(自身を除く): 10660686189

約数列:

[1, 3, 7, 21, 103, 163, 173, 309, 311, 489, 519, 721, 933, 1141, 1211, 2163, 2177, 3423, 3633, 6531, 16789, 17819, 28199, 32033, 50367, 50693, 53457, 53803, 84597, 96099, 117523, 124733, 152079, 161409, 197393, 224231, 352569, 354851, 374199, 376621, 592179, 672693, 1064553, 1129863, 2904497, 5221379, 5541709, 8713491, 8769889, 15664137, 16625127, 20331479, 26309667, 36549653, 38791963, 60994437, 61389223, 109648959, 116375889, 184167669, 903298567, 2709895701, 6323089969, 18969269907]

約数ペア:

[(1, 18969269907), (3, 6323089969), (7, 2709895701), (21, 903298567), (103, 184167669), (163, 116375889), (173, 109648959), (309, 61389223), (311, 60994437), (489, 38791963), (519, 36549653), (721, 26309667), (933, 20331479), (1141, 16625127), (1211, 15664137), (2163, 8769889), (2177, 8713491), (3423, 5541709), (3633, 5221379), (6531, 2904497), (16789, 1129863), (17819, 1064553), (28199, 672693), (32033, 592179), (50367, 376621), (50693, 374199), (53457, 354851), (53803, 352569), (84597, 224231), (96099, 197393), (117523, 161409), (124733, 152079)]