21041448

素因数分解:

$2^3\times 3^1\times {\mathrm{43}}^1\times {\mathrm{20389}}^1$

素因数の和:20441

約数の個数: 32

約数和(自身を含む): 53829600

約数和(自身を除く): 32788152

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 43, 86, 129, 172, 258, 344, 516, 1032, 20389, 40778, 61167, 81556, 122334, 163112, 244668, 489336, 876727, 1753454, 2630181, 3506908, 5260362, 7013816, 10520724, 21041448]

約数ペア:

[(1, 21041448), (2, 10520724), (3, 7013816), (4, 5260362), (6, 3506908), (8, 2630181), (12, 1753454), (24, 876727), (43, 489336), (86, 244668), (129, 163112), (172, 122334), (258, 81556), (344, 61167), (516, 40778), (1032, 20389)]