81686241

素因数分解:

$3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{5867}}^1$

素因数の和:5910

約数の個数: 48

約数和(自身を含む): 153788544

約数和(自身を除く): 72102303

約数列:

[1, 3, 7, 9, 13, 17, 21, 39, 51, 63, 91, 117, 119, 153, 221, 273, 357, 663, 819, 1071, 1547, 1989, 4641, 5867, 13923, 17601, 41069, 52803, 76271, 99739, 123207, 228813, 299217, 369621, 533897, 686439, 698173, 897651, 1296607, 1601691, 2094519, 3889821, 4805073, 6283557, 9076249, 11669463, 27228747, 81686241]

約数ペア:

[(1, 81686241), (3, 27228747), (7, 11669463), (9, 9076249), (13, 6283557), (17, 4805073), (21, 3889821), (39, 2094519), (51, 1601691), (63, 1296607), (91, 897651), (117, 698173), (119, 686439), (153, 533897), (221, 369621), (273, 299217), (357, 228813), (663, 123207), (819, 99739), (1071, 76271), (1547, 52803), (1989, 41069), (4641, 17601), (5867, 13923)]