20199031713

素因数分解:

$3^2\times 7^2\times {\mathrm{101}}^1\times {\mathrm{569}}^1\times {\mathrm{797}}^1$

素因数の和:1487

約数の個数: 72

約数和(自身を含む): 34379228520

約数和(自身を除く): 14180196807

約数列:

[1, 3, 7, 9, 21, 49, 63, 101, 147, 303, 441, 569, 707, 797, 909, 1707, 2121, 2391, 3983, 4949, 5121, 5579, 6363, 7173, 11949, 14847, 16737, 27881, 35847, 39053, 44541, 50211, 57469, 80497, 83643, 117159, 172407, 241491, 250929, 351477, 402283, 453493, 517221, 563479, 724473, 1206849, 1360479, 1690437, 2815981, 3174451, 3620547, 3944353, 4081437, 5071311, 8447943, 9523353, 11833059, 22221157, 25343829, 28570059, 35499177, 45802793, 66663471, 137408379, 199990413, 320619551, 412225137, 961858653, 2244336857, 2885575959, 6733010571, 20199031713]

約数ペア:

[(1, 20199031713), (3, 6733010571), (7, 2885575959), (9, 2244336857), (21, 961858653), (49, 412225137), (63, 320619551), (101, 199990413), (147, 137408379), (303, 66663471), (441, 45802793), (569, 35499177), (707, 28570059), (797, 25343829), (909, 22221157), (1707, 11833059), (2121, 9523353), (2391, 8447943), (3983, 5071311), (4949, 4081437), (5121, 3944353), (5579, 3620547), (6363, 3174451), (7173, 2815981), (11949, 1690437), (14847, 1360479), (16737, 1206849), (27881, 724473), (35847, 563479), (39053, 517221), (44541, 453493), (50211, 402283), (57469, 351477), (80497, 250929), (83643, 241491), (117159, 172407)]