278622981

素因数分解:

$3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{11731}}^1$

素因数の和:11786

約数の個数: 48

約数和(自身を含む): 512453760

約数和(自身を除く): 233830779

約数列:

[1, 3, 7, 9, 13, 21, 29, 39, 63, 87, 91, 117, 203, 261, 273, 377, 609, 819, 1131, 1827, 2639, 3393, 7917, 11731, 23751, 35193, 82117, 105579, 152503, 246351, 340199, 457509, 739053, 1020597, 1067521, 1372527, 2381393, 3061791, 3202563, 4422587, 7144179, 9607689, 13267761, 21432537, 30958109, 39803283, 92874327, 278622981]

約数ペア:

[(1, 278622981), (3, 92874327), (7, 39803283), (9, 30958109), (13, 21432537), (21, 13267761), (29, 9607689), (39, 7144179), (63, 4422587), (87, 3202563), (91, 3061791), (117, 2381393), (203, 1372527), (261, 1067521), (273, 1020597), (377, 739053), (609, 457509), (819, 340199), (1131, 246351), (1827, 152503), (2639, 105579), (3393, 82117), (7917, 35193), (11731, 23751)]