21278312

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{10513}}^1$

素因数の和:10553

約数の個数: 32

約数和(自身を含む): 45420480

約数和(自身を除く): 24142168

約数列:

[1, 2, 4, 8, 11, 22, 23, 44, 46, 88, 92, 184, 253, 506, 1012, 2024, 10513, 21026, 42052, 84104, 115643, 231286, 241799, 462572, 483598, 925144, 967196, 1934392, 2659789, 5319578, 10639156, 21278312]

約数ペア:

[(1, 21278312), (2, 10639156), (4, 5319578), (8, 2659789), (11, 1934392), (22, 967196), (23, 925144), (44, 483598), (46, 462572), (88, 241799), (92, 231286), (184, 115643), (253, 84104), (506, 42052), (1012, 21026), (2024, 10513)]