19631889

素因数分解:

$3^4\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{269}}^1$

素因数の和:351

約数の個数: 40

約数和(自身を含む): 31755240

約数和(自身を除く): 12123351

約数列:

[1, 3, 9, 17, 27, 51, 53, 81, 153, 159, 269, 459, 477, 807, 901, 1377, 1431, 2421, 2703, 4293, 4573, 7263, 8109, 13719, 14257, 21789, 24327, 41157, 42771, 72981, 123471, 128313, 242369, 370413, 384939, 727107, 1154817, 2181321, 6543963, 19631889]

約数ペア:

[(1, 19631889), (3, 6543963), (9, 2181321), (17, 1154817), (27, 727107), (51, 384939), (53, 370413), (81, 242369), (153, 128313), (159, 123471), (269, 72981), (459, 42771), (477, 41157), (807, 24327), (901, 21789), (1377, 14257), (1431, 13719), (2421, 8109), (2703, 7263), (4293, 4573)]