64863981

素因数分解:

$3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{2731}}^1$

素因数の和:2786

約数の個数: 48

約数和(自身を含む): 119333760

約数和(自身を除く): 54469779

約数列:

[1, 3, 7, 9, 13, 21, 29, 39, 63, 87, 91, 117, 203, 261, 273, 377, 609, 819, 1131, 1827, 2639, 2731, 3393, 7917, 8193, 19117, 23751, 24579, 35503, 57351, 79199, 106509, 172053, 237597, 248521, 319527, 554393, 712791, 745563, 1029587, 1663179, 2236689, 3088761, 4989537, 7207109, 9266283, 21621327, 64863981]

約数ペア:

[(1, 64863981), (3, 21621327), (7, 9266283), (9, 7207109), (13, 4989537), (21, 3088761), (29, 2236689), (39, 1663179), (63, 1029587), (87, 745563), (91, 712791), (117, 554393), (203, 319527), (261, 248521), (273, 237597), (377, 172053), (609, 106509), (819, 79199), (1131, 57351), (1827, 35503), (2639, 24579), (2731, 23751), (3393, 19117), (7917, 8193)]