2780810487

素因数分解:

$3^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{809}}^1\times {\mathrm{1399}}^1$

素因数の和:2237

約数の個数: 64

約数和(自身を含む): 5080320000

約数和(自身を除く): 2299509513

約数列:

[1, 3, 7, 9, 13, 21, 27, 39, 63, 91, 117, 189, 273, 351, 809, 819, 1399, 2427, 2457, 4197, 5663, 7281, 9793, 10517, 12591, 16989, 18187, 21843, 29379, 31551, 37773, 50967, 54561, 73619, 88137, 94653, 127309, 152901, 163683, 220857, 264411, 283959, 381927, 491049, 662571, 1131791, 1145781, 1987713, 3395373, 3437343, 7922537, 10186119, 14713283, 23767611, 30558357, 44139849, 71302833, 102992981, 132419547, 213908499, 308978943, 397258641, 926936829, 2780810487]

約数ペア:

[(1, 2780810487), (3, 926936829), (7, 397258641), (9, 308978943), (13, 213908499), (21, 132419547), (27, 102992981), (39, 71302833), (63, 44139849), (91, 30558357), (117, 23767611), (189, 14713283), (273, 10186119), (351, 7922537), (809, 3437343), (819, 3395373), (1399, 1987713), (2427, 1145781), (2457, 1131791), (4197, 662571), (5663, 491049), (7281, 381927), (9793, 283959), (10517, 264411), (12591, 220857), (16989, 163683), (18187, 152901), (21843, 127309), (29379, 94653), (31551, 88137), (37773, 73619), (50967, 54561)]