21254144

素因数分解:

$2^{12}\times {\mathrm{5189}}^1$

素因数の和:5213

約数の個数: 26

約数和(自身を含む): 42511290

約数和(自身を除く): 21257146

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 256, 512, 1024, 2048, 4096, 5189, 10378, 20756, 41512, 83024, 166048, 332096, 664192, 1328384, 2656768, 5313536, 10627072, 21254144]

約数ペア:

[(1, 21254144), (2, 10627072), (4, 5313536), (8, 2656768), (16, 1328384), (32, 664192), (64, 332096), (128, 166048), (256, 83024), (512, 41512), (1024, 20756), (2048, 10378), (4096, 5189)]