21450702956

素因数分解:

$2^2\times {\mathrm{103}}^1\times {\mathrm{139}}^1\times {\mathrm{463}}^1\times {\mathrm{809}}^1$

素因数の和:1518

約数の個数: 48

約数和(自身を含む): 38305612800

約数和(自身を除く): 16854909844

約数列:

[1, 2, 4, 103, 139, 206, 278, 412, 463, 556, 809, 926, 1618, 1852, 3236, 14317, 28634, 47689, 57268, 64357, 83327, 95378, 112451, 128714, 166654, 190756, 224902, 257428, 333308, 374567, 449804, 749134, 1498268, 6628771, 11582453, 13257542, 23164906, 26515084, 38580401, 46329812, 52064813, 77160802, 104129626, 154321604, 208259252, 5362675739, 10725351478, 21450702956]

約数ペア:

[(1, 21450702956), (2, 10725351478), (4, 5362675739), (103, 208259252), (139, 154321604), (206, 104129626), (278, 77160802), (412, 52064813), (463, 46329812), (556, 38580401), (809, 26515084), (926, 23164906), (1618, 13257542), (1852, 11582453), (3236, 6628771), (14317, 1498268), (28634, 749134), (47689, 449804), (57268, 374567), (64357, 333308), (83327, 257428), (95378, 224902), (112451, 190756), (128714, 166654)]