20187797483

素因数分解:

$7^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{101}}^1\times {\mathrm{173}}^1$

素因数の和:397

約数の個数: 96

約数和(自身を含む): 26949983040

約数和(自身を除く): 6762185557

約数列:

[1, 7, 17, 19, 49, 73, 101, 119, 133, 173, 323, 511, 707, 833, 931, 1211, 1241, 1387, 1717, 1919, 2261, 2941, 3287, 3577, 4949, 7373, 8477, 8687, 9709, 12019, 12629, 13433, 15827, 17473, 20587, 23009, 23579, 32623, 51611, 55879, 60809, 67963, 84133, 88403, 94031, 122311, 125341, 140087, 144109, 161063, 165053, 214693, 228361, 239951, 297041, 331987, 361277, 391153, 618821, 856177, 877387, 980609, 1155371, 1275529, 1502851, 1598527, 1679657, 2079287, 2323909, 2381479, 2738071, 4079167, 5643779, 6141709, 6864263, 8928703, 10519957, 11757599, 14555009, 16267363, 16670353, 21683993, 24235051, 28554169, 39506453, 62500921, 116692471, 151787951, 169645357, 199879183, 276545171, 411995867, 1062515657, 1187517499, 2883971069, 20187797483]

約数ペア:

[(1, 20187797483), (7, 2883971069), (17, 1187517499), (19, 1062515657), (49, 411995867), (73, 276545171), (101, 199879183), (119, 169645357), (133, 151787951), (173, 116692471), (323, 62500921), (511, 39506453), (707, 28554169), (833, 24235051), (931, 21683993), (1211, 16670353), (1241, 16267363), (1387, 14555009), (1717, 11757599), (1919, 10519957), (2261, 8928703), (2941, 6864263), (3287, 6141709), (3577, 5643779), (4949, 4079167), (7373, 2738071), (8477, 2381479), (8687, 2323909), (9709, 2079287), (12019, 1679657), (12629, 1598527), (13433, 1502851), (15827, 1275529), (17473, 1155371), (20587, 980609), (23009, 877387), (23579, 856177), (32623, 618821), (51611, 391153), (55879, 361277), (60809, 331987), (67963, 297041), (84133, 239951), (88403, 228361), (94031, 214693), (122311, 165053), (125341, 161063), (140087, 144109)]