21357579552020

素因数分解:

$2^2\times 5^1\times {\mathrm{67}}^1\times {\mathrm{15938492203}}^1$

素因数の和:15938492279

約数の個数: 24

約数和(自身を含む): 45520333734624

約数和(自身を除く): 24162754182604

約数列:

[1, 2, 4, 5, 10, 20, 67, 134, 268, 335, 670, 1340, 15938492203, 31876984406, 63753968812, 79692461015, 159384922030, 318769844060, 1067878977601, 2135757955202, 4271515910404, 5339394888005, 10678789776010, 21357579552020]

約数ペア:

[(1, 21357579552020), (2, 10678789776010), (4, 5339394888005), (5, 4271515910404), (10, 2135757955202), (20, 1067878977601), (67, 318769844060), (134, 159384922030), (268, 79692461015), (335, 63753968812), (670, 31876984406), (1340, 15938492203)]