218510838

素因数分解:

$2^1\times 3^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{839}}^1$

素因数の和:923

約数の個数: 128

約数和(自身を含む): 609638400

約数和(自身を除く): 391127562

約数列:

[1, 2, 3, 6, 7, 9, 13, 14, 18, 21, 26, 27, 39, 42, 53, 54, 63, 78, 91, 106, 117, 126, 159, 182, 189, 234, 273, 318, 351, 371, 378, 477, 546, 689, 702, 742, 819, 839, 954, 1113, 1378, 1431, 1638, 1678, 2067, 2226, 2457, 2517, 2862, 3339, 4134, 4823, 4914, 5034, 5873, 6201, 6678, 7551, 9646, 10017, 10907, 11746, 12402, 14469, 15102, 17619, 18603, 20034, 21814, 22653, 28938, 32721, 35238, 37206, 43407, 44467, 45306, 52857, 65442, 76349, 86814, 88934, 98163, 105714, 130221, 133401, 152698, 158571, 196326, 229047, 260442, 266802, 294489, 311269, 317142, 400203, 458094, 578071, 588978, 622538, 687141, 800406, 933807, 1156142, 1200609, 1374282, 1734213, 1867614, 2061423, 2401218, 2801421, 3468426, 4046497, 4122846, 5202639, 5602842, 8092994, 8404263, 10405278, 12139491, 15607917, 16808526, 24278982, 31215834, 36418473, 72836946, 109255419, 218510838]

約数ペア:

[(1, 218510838), (2, 109255419), (3, 72836946), (6, 36418473), (7, 31215834), (9, 24278982), (13, 16808526), (14, 15607917), (18, 12139491), (21, 10405278), (26, 8404263), (27, 8092994), (39, 5602842), (42, 5202639), (53, 4122846), (54, 4046497), (63, 3468426), (78, 2801421), (91, 2401218), (106, 2061423), (117, 1867614), (126, 1734213), (159, 1374282), (182, 1200609), (189, 1156142), (234, 933807), (273, 800406), (318, 687141), (351, 622538), (371, 588978), (378, 578071), (477, 458094), (546, 400203), (689, 317142), (702, 311269), (742, 294489), (819, 266802), (839, 260442), (954, 229047), (1113, 196326), (1378, 158571), (1431, 152698), (1638, 133401), (1678, 130221), (2067, 105714), (2226, 98163), (2457, 88934), (2517, 86814), (2862, 76349), (3339, 65442), (4134, 52857), (4823, 45306), (4914, 44467), (5034, 43407), (5873, 37206), (6201, 35238), (6678, 32721), (7551, 28938), (9646, 22653), (10017, 21814), (10907, 20034), (11746, 18603), (12402, 17619), (14469, 15102)]