19085451

素因数分解:

$3^1\times 7^2\times {\mathrm{11}}^2\times {\mathrm{29}}^1\times {\mathrm{37}}^1$

素因数の和:105

約数の個数: 72

約数和(自身を含む): 34569360

約数和(自身を除く): 15483909

約数列:

[1, 3, 7, 11, 21, 29, 33, 37, 49, 77, 87, 111, 121, 147, 203, 231, 259, 319, 363, 407, 539, 609, 777, 847, 957, 1073, 1221, 1421, 1617, 1813, 2233, 2541, 2849, 3219, 3509, 4263, 4477, 5439, 5929, 6699, 7511, 8547, 10527, 11803, 13431, 15631, 17787, 19943, 22533, 24563, 31339, 35409, 46893, 52577, 59829, 73689, 82621, 94017, 129833, 157731, 171941, 219373, 247863, 389499, 515823, 578347, 658119, 908831, 1735041, 2726493, 6361817, 19085451]

約数ペア:

[(1, 19085451), (3, 6361817), (7, 2726493), (11, 1735041), (21, 908831), (29, 658119), (33, 578347), (37, 515823), (49, 389499), (77, 247863), (87, 219373), (111, 171941), (121, 157731), (147, 129833), (203, 94017), (231, 82621), (259, 73689), (319, 59829), (363, 52577), (407, 46893), (539, 35409), (609, 31339), (777, 24563), (847, 22533), (957, 19943), (1073, 17787), (1221, 15631), (1421, 13431), (1617, 11803), (1813, 10527), (2233, 8547), (2541, 7511), (2849, 6699), (3219, 5929), (3509, 5439), (4263, 4477)]