21282646

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{113}}^1\times {\mathrm{1223}}^1$

素因数の和:1356

約数の個数: 32

約数和(自身を含む): 40186368

約数和(自身を除く): 18903722

約数列:

[1, 2, 7, 11, 14, 22, 77, 113, 154, 226, 791, 1223, 1243, 1582, 2446, 2486, 8561, 8701, 13453, 17122, 17402, 26906, 94171, 138199, 188342, 276398, 967393, 1520189, 1934786, 3040378, 10641323, 21282646]

約数ペア:

[(1, 21282646), (2, 10641323), (7, 3040378), (11, 1934786), (14, 1520189), (22, 967393), (77, 276398), (113, 188342), (154, 138199), (226, 94171), (791, 26906), (1223, 17402), (1243, 17122), (1582, 13453), (2446, 8701), (2486, 8561)]