7988778

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{71}}^1$

素因数の和:152

約数の個数: 96

約数和(自身を含む): 21565440

約数和(自身を除く): 13576662

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 19, 21, 38, 42, 47, 57, 63, 71, 94, 114, 126, 133, 141, 142, 171, 213, 266, 282, 329, 342, 399, 423, 426, 497, 639, 658, 798, 846, 893, 987, 994, 1197, 1278, 1349, 1491, 1786, 1974, 2394, 2679, 2698, 2961, 2982, 3337, 4047, 4473, 5358, 5922, 6251, 6674, 8037, 8094, 8946, 9443, 10011, 12141, 12502, 16074, 18753, 18886, 20022, 23359, 24282, 28329, 30033, 37506, 46718, 56259, 56658, 60066, 63403, 70077, 84987, 112518, 126806, 140154, 169974, 190209, 210231, 380418, 420462, 443821, 570627, 887642, 1141254, 1331463, 2662926, 3994389, 7988778]

約数ペア:

[(1, 7988778), (2, 3994389), (3, 2662926), (6, 1331463), (7, 1141254), (9, 887642), (14, 570627), (18, 443821), (19, 420462), (21, 380418), (38, 210231), (42, 190209), (47, 169974), (57, 140154), (63, 126806), (71, 112518), (94, 84987), (114, 70077), (126, 63403), (133, 60066), (141, 56658), (142, 56259), (171, 46718), (213, 37506), (266, 30033), (282, 28329), (329, 24282), (342, 23359), (399, 20022), (423, 18886), (426, 18753), (497, 16074), (639, 12502), (658, 12141), (798, 10011), (846, 9443), (893, 8946), (987, 8094), (994, 8037), (1197, 6674), (1278, 6251), (1349, 5922), (1491, 5358), (1786, 4473), (1974, 4047), (2394, 3337), (2679, 2982), (2698, 2961)]