21639312513

素因数分解:

$3^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{311}}^1\times {\mathrm{28319}}^1$

素因数の和:28659

約数の個数: 64

約数和(自身を含む): 39584563200

約数和(自身を除く): 17945250687

約数列:

[1, 3, 7, 9, 13, 21, 27, 39, 63, 91, 117, 189, 273, 311, 351, 819, 933, 2177, 2457, 2799, 4043, 6531, 8397, 12129, 19593, 28301, 28319, 36387, 58779, 84903, 84957, 109161, 198233, 254709, 254871, 368147, 594699, 764127, 764613, 1104441, 1784097, 2577029, 3313323, 5352291, 7731087, 8807209, 9939969, 23193261, 26421627, 61650463, 69579783, 79264881, 114493717, 184951389, 237794643, 343481151, 554854167, 801456019, 1030443453, 1664562501, 2404368057, 3091330359, 7213104171, 21639312513]

約数ペア:

[(1, 21639312513), (3, 7213104171), (7, 3091330359), (9, 2404368057), (13, 1664562501), (21, 1030443453), (27, 801456019), (39, 554854167), (63, 343481151), (91, 237794643), (117, 184951389), (189, 114493717), (273, 79264881), (311, 69579783), (351, 61650463), (819, 26421627), (933, 23193261), (2177, 9939969), (2457, 8807209), (2799, 7731087), (4043, 5352291), (6531, 3313323), (8397, 2577029), (12129, 1784097), (19593, 1104441), (28301, 764613), (28319, 764127), (36387, 594699), (58779, 368147), (84903, 254871), (84957, 254709), (109161, 198233)]