21159704

素因数分解:

$2^3\times {\mathrm{71}}^1\times {\mathrm{37253}}^1$

素因数の和:37330

約数の個数: 16

約数和(自身を含む): 40234320

約数和(自身を除く): 19074616

約数列:

[1, 2, 4, 8, 71, 142, 284, 568, 37253, 74506, 149012, 298024, 2644963, 5289926, 10579852, 21159704]

約数ペア:

[(1, 21159704), (2, 10579852), (4, 5289926), (8, 2644963), (71, 298024), (142, 149012), (284, 74506), (568, 37253)]