19754955

素因数分解:

$3^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{251}}^1$

素因数の和:329

約数の個数: 64

約数和(自身を含む): 39191040

約数和(自身を除く): 19436085

約数列:

[1, 3, 5, 9, 11, 15, 27, 33, 45, 53, 55, 99, 135, 159, 165, 251, 265, 297, 477, 495, 583, 753, 795, 1255, 1431, 1485, 1749, 2259, 2385, 2761, 2915, 3765, 5247, 6777, 7155, 8283, 8745, 11295, 13303, 13805, 15741, 24849, 26235, 33885, 39909, 41415, 66515, 74547, 78705, 119727, 124245, 146333, 199545, 359181, 372735, 438999, 598635, 731665, 1316997, 1795905, 2194995, 3950991, 6584985, 19754955]

約数ペア:

[(1, 19754955), (3, 6584985), (5, 3950991), (9, 2194995), (11, 1795905), (15, 1316997), (27, 731665), (33, 598635), (45, 438999), (53, 372735), (55, 359181), (99, 199545), (135, 146333), (159, 124245), (165, 119727), (251, 78705), (265, 74547), (297, 66515), (477, 41415), (495, 39909), (583, 33885), (753, 26235), (795, 24849), (1255, 15741), (1431, 13805), (1485, 13303), (1749, 11295), (2259, 8745), (2385, 8283), (2761, 7155), (2915, 6777), (3765, 5247)]