20518974

素因数分解:

$2^1\times 3^3\times 7^1\times {\mathrm{19}}^1\times {\mathrm{2857}}^1$

素因数の和:2894

約数の個数: 64

約数和(自身を含む): 54873600

約数和(自身を除く): 34354626

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 19, 21, 27, 38, 42, 54, 57, 63, 114, 126, 133, 171, 189, 266, 342, 378, 399, 513, 798, 1026, 1197, 2394, 2857, 3591, 5714, 7182, 8571, 17142, 19999, 25713, 39998, 51426, 54283, 59997, 77139, 108566, 119994, 154278, 162849, 179991, 325698, 359982, 379981, 488547, 539973, 759962, 977094, 1079946, 1139943, 1465641, 2279886, 2931282, 3419829, 6839658, 10259487, 20518974]

約数ペア:

[(1, 20518974), (2, 10259487), (3, 6839658), (6, 3419829), (7, 2931282), (9, 2279886), (14, 1465641), (18, 1139943), (19, 1079946), (21, 977094), (27, 759962), (38, 539973), (42, 488547), (54, 379981), (57, 359982), (63, 325698), (114, 179991), (126, 162849), (133, 154278), (171, 119994), (189, 108566), (266, 77139), (342, 59997), (378, 54283), (399, 51426), (513, 39998), (798, 25713), (1026, 19999), (1197, 17142), (2394, 8571), (2857, 7182), (3591, 5714)]