19812078

素因数分解:

$2^1\times 3^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{179}}^1$

素因数の和:254

約数の個数: 96

約数和(自身を含む): 51891840

約数和(自身を除く): 32079762

約数列:

[1, 2, 3, 6, 9, 11, 13, 18, 22, 26, 33, 39, 43, 66, 78, 86, 99, 117, 129, 143, 179, 198, 234, 258, 286, 358, 387, 429, 473, 537, 559, 774, 858, 946, 1074, 1118, 1287, 1419, 1611, 1677, 1969, 2327, 2574, 2838, 3222, 3354, 3938, 4257, 4654, 5031, 5907, 6149, 6981, 7697, 8514, 10062, 11814, 12298, 13962, 15394, 17721, 18447, 20943, 23091, 25597, 35442, 36894, 41886, 46182, 51194, 55341, 69273, 76791, 84667, 100061, 110682, 138546, 153582, 169334, 200122, 230373, 254001, 300183, 460746, 508002, 600366, 762003, 900549, 1100671, 1524006, 1801098, 2201342, 3302013, 6604026, 9906039, 19812078]

約数ペア:

[(1, 19812078), (2, 9906039), (3, 6604026), (6, 3302013), (9, 2201342), (11, 1801098), (13, 1524006), (18, 1100671), (22, 900549), (26, 762003), (33, 600366), (39, 508002), (43, 460746), (66, 300183), (78, 254001), (86, 230373), (99, 200122), (117, 169334), (129, 153582), (143, 138546), (179, 110682), (198, 100061), (234, 84667), (258, 76791), (286, 69273), (358, 55341), (387, 51194), (429, 46182), (473, 41886), (537, 36894), (559, 35442), (774, 25597), (858, 23091), (946, 20943), (1074, 18447), (1118, 17721), (1287, 15394), (1419, 13962), (1611, 12298), (1677, 11814), (1969, 10062), (2327, 8514), (2574, 7697), (2838, 6981), (3222, 6149), (3354, 5907), (3938, 5031), (4257, 4654)]