21611336

素因数分解:

$2^3\times {\mathrm{89}}^1\times {\mathrm{127}}^1\times {\mathrm{239}}^1$

素因数の和:461

約数の個数: 32

約数和(自身を含む): 41472000

約数和(自身を除く): 19860664

約数列:

[1, 2, 4, 8, 89, 127, 178, 239, 254, 356, 478, 508, 712, 956, 1016, 1912, 11303, 21271, 22606, 30353, 42542, 45212, 60706, 85084, 90424, 121412, 170168, 242824, 2701417, 5402834, 10805668, 21611336]

約数ペア:

[(1, 21611336), (2, 10805668), (4, 5402834), (8, 2701417), (89, 242824), (127, 170168), (178, 121412), (239, 90424), (254, 85084), (356, 60706), (478, 45212), (508, 42542), (712, 30353), (956, 22606), (1016, 21271), (1912, 11303)]