28810278

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{137}}^1\times {\mathrm{1669}}^1$

素因数の和:1821

約数の個数: 48

約数和(自身を含む): 71903520

約数和(自身を除く): 43093242

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 63, 126, 137, 274, 411, 822, 959, 1233, 1669, 1918, 2466, 2877, 3338, 5007, 5754, 8631, 10014, 11683, 15021, 17262, 23366, 30042, 35049, 70098, 105147, 210294, 228653, 457306, 685959, 1371918, 1600571, 2057877, 3201142, 4115754, 4801713, 9603426, 14405139, 28810278]

約数ペア:

[(1, 28810278), (2, 14405139), (3, 9603426), (6, 4801713), (7, 4115754), (9, 3201142), (14, 2057877), (18, 1600571), (21, 1371918), (42, 685959), (63, 457306), (126, 228653), (137, 210294), (274, 105147), (411, 70098), (822, 35049), (959, 30042), (1233, 23366), (1669, 17262), (1918, 15021), (2466, 11683), (2877, 10014), (3338, 8631), (5007, 5754)]