20898536

素因数分解:

$2^3\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{2143}}^1$

素因数の和:2225

約数の個数: 32

約数和(自身を含む): 41679360

約数和(自身を除く): 20780824

約数列:

[1, 2, 4, 8, 23, 46, 53, 92, 106, 184, 212, 424, 1219, 2143, 2438, 4286, 4876, 8572, 9752, 17144, 49289, 98578, 113579, 197156, 227158, 394312, 454316, 908632, 2612317, 5224634, 10449268, 20898536]

約数ペア:

[(1, 20898536), (2, 10449268), (4, 5224634), (8, 2612317), (23, 908632), (46, 454316), (53, 394312), (92, 227158), (106, 197156), (184, 113579), (212, 98578), (424, 49289), (1219, 17144), (2143, 9752), (2438, 8572), (4286, 4876)]