28290906

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{113}}^1\times {\mathrm{1987}}^1$

素因数の和:2115

約数の個数: 48

約数和(自身を含む): 70709184

約数和(自身を除く): 42418278

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 63, 113, 126, 226, 339, 678, 791, 1017, 1582, 1987, 2034, 2373, 3974, 4746, 5961, 7119, 11922, 13909, 14238, 17883, 27818, 35766, 41727, 83454, 125181, 224531, 250362, 449062, 673593, 1347186, 1571717, 2020779, 3143434, 4041558, 4715151, 9430302, 14145453, 28290906]

約数ペア:

[(1, 28290906), (2, 14145453), (3, 9430302), (6, 4715151), (7, 4041558), (9, 3143434), (14, 2020779), (18, 1571717), (21, 1347186), (42, 673593), (63, 449062), (113, 250362), (126, 224531), (226, 125181), (339, 83454), (678, 41727), (791, 35766), (1017, 27818), (1582, 17883), (1987, 14238), (2034, 13909), (2373, 11922), (3974, 7119), (4746, 5961)]