21000503456

素因数分解:

$2^5\times {\mathrm{643}}^1\times {\mathrm{1020631}}^1$

素因数の和:1021284

約数の個数: 24

約数和(自身を含む): 41409081504

約数和(自身を除く): 20408578048

約数列:

[1, 2, 4, 8, 16, 32, 643, 1286, 2572, 5144, 10288, 20576, 1020631, 2041262, 4082524, 8165048, 16330096, 32660192, 656265733, 1312531466, 2625062932, 5250125864, 10500251728, 21000503456]

約数ペア:

[(1, 21000503456), (2, 10500251728), (4, 5250125864), (8, 2625062932), (16, 1312531466), (32, 656265733), (643, 32660192), (1286, 16330096), (2572, 8165048), (5144, 4082524), (10288, 2041262), (20576, 1020631)]