20638144

素因数分解:

$2^6\times {\mathrm{67}}^1\times {\mathrm{4813}}^1$

素因数の和:4892

約数の個数: 28

約数和(自身を含む): 41573704

約数和(自身を除く): 20935560

約数列:

[1, 2, 4, 8, 16, 32, 64, 67, 134, 268, 536, 1072, 2144, 4288, 4813, 9626, 19252, 38504, 77008, 154016, 308032, 322471, 644942, 1289884, 2579768, 5159536, 10319072, 20638144]

約数ペア:

[(1, 20638144), (2, 10319072), (4, 5159536), (8, 2579768), (16, 1289884), (32, 644942), (64, 322471), (67, 308032), (134, 154016), (268, 77008), (536, 38504), (1072, 19252), (2144, 9626), (4288, 4813)]