21480048

素因数分解:

$2^4\times 3^2\times {\mathrm{43}}^1\times {\mathrm{3469}}^1$

素因数の和:3526

約数の個数: 60

約数和(自身を含む): 61530040

約数和(自身を除く): 40049992

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 36, 43, 48, 72, 86, 129, 144, 172, 258, 344, 387, 516, 688, 774, 1032, 1548, 2064, 3096, 3469, 6192, 6938, 10407, 13876, 20814, 27752, 31221, 41628, 55504, 62442, 83256, 124884, 149167, 166512, 249768, 298334, 447501, 499536, 596668, 895002, 1193336, 1342503, 1790004, 2386672, 2685006, 3580008, 5370012, 7160016, 10740024, 21480048]

約数ペア:

[(1, 21480048), (2, 10740024), (3, 7160016), (4, 5370012), (6, 3580008), (8, 2685006), (9, 2386672), (12, 1790004), (16, 1342503), (18, 1193336), (24, 895002), (36, 596668), (43, 499536), (48, 447501), (72, 298334), (86, 249768), (129, 166512), (144, 149167), (172, 124884), (258, 83256), (344, 62442), (387, 55504), (516, 41628), (688, 31221), (774, 27752), (1032, 20814), (1548, 13876), (2064, 10407), (3096, 6938), (3469, 6192)]