78387438717

素因数分解:

$3^4\times 7^1\times {\mathrm{9931}}^1\times {\mathrm{13921}}^1$

素因数の和:23871

約数の個数: 40

約数和(自身を含む): 133848558272

約数和(自身を除く): 55461119555

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 567, 9931, 13921, 29793, 41763, 69517, 89379, 97447, 125289, 208551, 268137, 292341, 375867, 625653, 804411, 877023, 1127601, 1876959, 2631069, 5630877, 7893207, 138249451, 414748353, 967746157, 1244245059, 2903238471, 3732735177, 8709715413, 11198205531, 26129146239, 78387438717]

約数ペア:

[(1, 78387438717), (3, 26129146239), (7, 11198205531), (9, 8709715413), (21, 3732735177), (27, 2903238471), (63, 1244245059), (81, 967746157), (189, 414748353), (567, 138249451), (9931, 7893207), (13921, 5630877), (29793, 2631069), (41763, 1876959), (69517, 1127601), (89379, 877023), (97447, 804411), (125289, 625653), (208551, 375867), (268137, 292341)]