28490418

素因数分解:

$2^1\times 3^2\times {\mathrm{11}}^2\times {\mathrm{103}}^1\times {\mathrm{127}}^1$

素因数の和:260

約数の個数: 72

約数和(自身を含む): 69049344

約数和(自身を除く): 40558926

約数列:

[1, 2, 3, 6, 9, 11, 18, 22, 33, 66, 99, 103, 121, 127, 198, 206, 242, 254, 309, 363, 381, 618, 726, 762, 927, 1089, 1133, 1143, 1397, 1854, 2178, 2266, 2286, 2794, 3399, 4191, 6798, 8382, 10197, 12463, 12573, 13081, 15367, 20394, 24926, 25146, 26162, 30734, 37389, 39243, 46101, 74778, 78486, 92202, 112167, 117729, 138303, 143891, 224334, 235458, 276606, 287782, 431673, 863346, 1295019, 1582801, 2590038, 3165602, 4748403, 9496806, 14245209, 28490418]

約数ペア:

[(1, 28490418), (2, 14245209), (3, 9496806), (6, 4748403), (9, 3165602), (11, 2590038), (18, 1582801), (22, 1295019), (33, 863346), (66, 431673), (99, 287782), (103, 276606), (121, 235458), (127, 224334), (198, 143891), (206, 138303), (242, 117729), (254, 112167), (309, 92202), (363, 78486), (381, 74778), (618, 46101), (726, 39243), (762, 37389), (927, 30734), (1089, 26162), (1133, 25146), (1143, 24926), (1397, 20394), (1854, 15367), (2178, 13081), (2266, 12573), (2286, 12463), (2794, 10197), (3399, 8382), (4191, 6798)]