20988198

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{797}}^1$

素因数の和:842

約数の個数: 96

約数和(自身を含む): 59754240

約数和(自身を除く): 38766042

約数列:

[1, 2, 3, 6, 7, 9, 11, 14, 18, 19, 21, 22, 33, 38, 42, 57, 63, 66, 77, 99, 114, 126, 133, 154, 171, 198, 209, 231, 266, 342, 399, 418, 462, 627, 693, 797, 798, 1197, 1254, 1386, 1463, 1594, 1881, 2391, 2394, 2926, 3762, 4389, 4782, 5579, 7173, 8767, 8778, 11158, 13167, 14346, 15143, 16737, 17534, 26301, 26334, 30286, 33474, 45429, 50211, 52602, 61369, 78903, 90858, 100422, 106001, 122738, 136287, 157806, 166573, 184107, 212002, 272574, 318003, 333146, 368214, 499719, 552321, 636006, 954009, 999438, 1104642, 1166011, 1499157, 1908018, 2332022, 2998314, 3498033, 6996066, 10494099, 20988198]

約数ペア:

[(1, 20988198), (2, 10494099), (3, 6996066), (6, 3498033), (7, 2998314), (9, 2332022), (11, 1908018), (14, 1499157), (18, 1166011), (19, 1104642), (21, 999438), (22, 954009), (33, 636006), (38, 552321), (42, 499719), (57, 368214), (63, 333146), (66, 318003), (77, 272574), (99, 212002), (114, 184107), (126, 166573), (133, 157806), (154, 136287), (171, 122738), (198, 106001), (209, 100422), (231, 90858), (266, 78903), (342, 61369), (399, 52602), (418, 50211), (462, 45429), (627, 33474), (693, 30286), (797, 26334), (798, 26301), (1197, 17534), (1254, 16737), (1386, 15143), (1463, 14346), (1594, 13167), (1881, 11158), (2391, 8778), (2394, 8767), (2926, 7173), (3762, 5579), (4389, 4782)]