648478881

素因数分解:

$3^2\times {\mathrm{47}}^1\times {\mathrm{271}}^1\times {\mathrm{5657}}^1$

素因数の和:5981

約数の個数: 24

約数和(自身を含む): 960321024

約数和(自身を除く): 311842143

約数列:

[1, 3, 9, 47, 141, 271, 423, 813, 2439, 5657, 12737, 16971, 38211, 50913, 114633, 265879, 797637, 1533047, 2392911, 4599141, 13797423, 72053209, 216159627, 648478881]

約数ペア:

[(1, 648478881), (3, 216159627), (9, 72053209), (47, 13797423), (141, 4599141), (271, 2392911), (423, 1533047), (813, 797637), (2439, 265879), (5657, 114633), (12737, 50913), (16971, 38211)]