217680138

素因数分解:

$2^1\times 3^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{54721}}^1$

素因数の和:54759

約数の個数: 48

約数和(自身を含む): 537807816

約数和(自身を除く): 320127678

約数列:

[1, 2, 3, 6, 9, 13, 17, 18, 26, 34, 39, 51, 78, 102, 117, 153, 221, 234, 306, 442, 663, 1326, 1989, 3978, 54721, 109442, 164163, 328326, 492489, 711373, 930257, 984978, 1422746, 1860514, 2134119, 2790771, 4268238, 5581542, 6402357, 8372313, 12093341, 12804714, 16744626, 24186682, 36280023, 72560046, 108840069, 217680138]

約数ペア:

[(1, 217680138), (2, 108840069), (3, 72560046), (6, 36280023), (9, 24186682), (13, 16744626), (17, 12804714), (18, 12093341), (26, 8372313), (34, 6402357), (39, 5581542), (51, 4268238), (78, 2790771), (102, 2134119), (117, 1860514), (153, 1422746), (221, 984978), (234, 930257), (306, 711373), (442, 492489), (663, 328326), (1326, 164163), (1989, 109442), (3978, 54721)]