28367577

素因数分解:

$3^7\times 7^1\times {\mathrm{17}}^1\times {\mathrm{109}}^1$

素因数の和:154

約数の個数: 64

約数和(自身を含む): 51955200

約数和(自身を除く): 23587623

約数列:

[1, 3, 7, 9, 17, 21, 27, 51, 63, 81, 109, 119, 153, 189, 243, 327, 357, 459, 567, 729, 763, 981, 1071, 1377, 1701, 1853, 2187, 2289, 2943, 3213, 4131, 5103, 5559, 6867, 8829, 9639, 12393, 12971, 15309, 16677, 20601, 26487, 28917, 37179, 38913, 50031, 61803, 79461, 86751, 116739, 150093, 185409, 238383, 260253, 350217, 450279, 556227, 1050651, 1350837, 1668681, 3151953, 4052511, 9455859, 28367577]

約数ペア:

[(1, 28367577), (3, 9455859), (7, 4052511), (9, 3151953), (17, 1668681), (21, 1350837), (27, 1050651), (51, 556227), (63, 450279), (81, 350217), (109, 260253), (119, 238383), (153, 185409), (189, 150093), (243, 116739), (327, 86751), (357, 79461), (459, 61803), (567, 50031), (729, 38913), (763, 37179), (981, 28917), (1071, 26487), (1377, 20601), (1701, 16677), (1853, 15309), (2187, 12971), (2289, 12393), (2943, 9639), (3213, 8829), (4131, 6867), (5103, 5559)]