21051256

素因数分解:

$2^3\times {\mathrm{23}}^1\times {\mathrm{191}}^1\times {\mathrm{599}}^1$

素因数の和:819

約数の個数: 32

約数和(自身を含む): 41472000

約数和(自身を除く): 20420744

約数列:

[1, 2, 4, 8, 23, 46, 92, 184, 191, 382, 599, 764, 1198, 1528, 2396, 4393, 4792, 8786, 13777, 17572, 27554, 35144, 55108, 110216, 114409, 228818, 457636, 915272, 2631407, 5262814, 10525628, 21051256]

約数ペア:

[(1, 21051256), (2, 10525628), (4, 5262814), (8, 2631407), (23, 915272), (46, 457636), (92, 228818), (184, 114409), (191, 110216), (382, 55108), (599, 35144), (764, 27554), (1198, 17572), (1528, 13777), (2396, 8786), (4393, 4792)]