20138263019

素因数分解:

$7^1\times {\mathrm{17}}^2\times {\mathrm{23}}^1\times {\mathrm{443}}^1\times {\mathrm{977}}^1$

素因数の和:1484

約数の個数: 48

約数和(自身を含む): 25595371008

約数和(自身を除く): 5457107989

約数列:

[1, 7, 17, 23, 119, 161, 289, 391, 443, 977, 2023, 2737, 3101, 6647, 6839, 7531, 10189, 16609, 22471, 46529, 52717, 71323, 116263, 128027, 157297, 173213, 282353, 382007, 432811, 896189, 1212491, 1976471, 2674049, 2944621, 3029677, 6494119, 7357787, 9954653, 20612347, 45458833, 51504509, 69682571, 125082379, 169229101, 875576653, 1184603707, 2876894717, 20138263019]

約数ペア:

[(1, 20138263019), (7, 2876894717), (17, 1184603707), (23, 875576653), (119, 169229101), (161, 125082379), (289, 69682571), (391, 51504509), (443, 45458833), (977, 20612347), (2023, 9954653), (2737, 7357787), (3101, 6494119), (6647, 3029677), (6839, 2944621), (7531, 2674049), (10189, 1976471), (16609, 1212491), (22471, 896189), (46529, 432811), (52717, 382007), (71323, 282353), (116263, 173213), (128027, 157297)]