15958803

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{47}}^1$

素因数の和:136

約数の個数: 64

約数和(自身を含む): 28016640

約数和(自身を除く): 12057837

約数列:

[1, 3, 7, 19, 21, 23, 37, 47, 57, 69, 111, 133, 141, 161, 259, 329, 399, 437, 483, 703, 777, 851, 893, 987, 1081, 1311, 1739, 2109, 2553, 2679, 3059, 3243, 4921, 5217, 5957, 6251, 7567, 9177, 12173, 14763, 16169, 17871, 18753, 20539, 22701, 33041, 36519, 39997, 48507, 61617, 99123, 113183, 119991, 143773, 231287, 279979, 339549, 431319, 693861, 759943, 839937, 2279829, 5319601, 15958803]

約数ペア:

[(1, 15958803), (3, 5319601), (7, 2279829), (19, 839937), (21, 759943), (23, 693861), (37, 431319), (47, 339549), (57, 279979), (69, 231287), (111, 143773), (133, 119991), (141, 113183), (161, 99123), (259, 61617), (329, 48507), (399, 39997), (437, 36519), (483, 33041), (703, 22701), (777, 20539), (851, 18753), (893, 17871), (987, 16169), (1081, 14763), (1311, 12173), (1739, 9177), (2109, 7567), (2553, 6251), (2679, 5957), (3059, 5217), (3243, 4921)]