1640697849

素因数分解:

$3^5\times 7^1\times {\mathrm{73}}^2\times {\mathrm{181}}^1$

素因数の和:349

約数の個数: 72

約数和(自身を含む): 2863503552

約数和(自身を除く): 1222805703

約数列:

[1, 3, 7, 9, 21, 27, 63, 73, 81, 181, 189, 219, 243, 511, 543, 567, 657, 1267, 1533, 1629, 1701, 1971, 3801, 4599, 4887, 5329, 5913, 11403, 13213, 13797, 14661, 15987, 17739, 34209, 37303, 39639, 41391, 43983, 47961, 92491, 102627, 111909, 118917, 124173, 143883, 277473, 307881, 335727, 356751, 431649, 832419, 964549, 1007181, 1070253, 1294947, 2497257, 2893647, 3021543, 3210759, 6751843, 7491771, 8680941, 9064629, 20255529, 22475313, 26042823, 60766587, 78128469, 182299761, 234385407, 546899283, 1640697849]

約数ペア:

[(1, 1640697849), (3, 546899283), (7, 234385407), (9, 182299761), (21, 78128469), (27, 60766587), (63, 26042823), (73, 22475313), (81, 20255529), (181, 9064629), (189, 8680941), (219, 7491771), (243, 6751843), (511, 3210759), (543, 3021543), (567, 2893647), (657, 2497257), (1267, 1294947), (1533, 1070253), (1629, 1007181), (1701, 964549), (1971, 832419), (3801, 431649), (4599, 356751), (4887, 335727), (5329, 307881), (5913, 277473), (11403, 143883), (13213, 124173), (13797, 118917), (14661, 111909), (15987, 102627), (17739, 92491), (34209, 47961), (37303, 43983), (39639, 41391)]